a a b 24, a a c 18, a b c 9, find what is a, b, c each

2 a+b=24

2 a+c=18

a+b-c=9

Use subtraction to get :

2 a+b-2 a-c=24-18

b-c=6 with - get:

a=3, so b=24-2 3=18

c=18-6=12

Hope it helps.

2a+b=24①

2a+c=18②

a+b-c=9③

Get b-c = 6

Substituting the above equation into the equation yields a+6=9

A = 3 substitution to get 6 + b = 24

b = 18 substitution , get.

6+c=18

c = 12 in summary, a = 3, b = 18, c = 12

From 1-2, b—c=24—18=6

A 10 6 = 9, a = 3

3 Ten 3 Ten b = 24, get b = 18

3+3+c=18, get c=12

So a=3, b=18, c=12.

2a+b=24①

2a+c=18②

a+b-c=9③

：b-c=6

Substitution: a+6=9, a=9-6=3

Substitute a=3 into b=24-2a=24-6=18 into c=18-2a=18-6=12

Final solution: a=3

b=18c=12

Summary. b) and (c) are offset by +b and +c.

a+b+c=26, a-b-c=8, find a=?

Hello, I'm glad to answer your questions A=17 Oh The calculation process of the potato split body is as follows: a+b+c+a b c=342a=34a=17

Pro: Just add a+b+c=26 and a-b-c=8 together

That's it? Yes, dear, add up the two equations of the bureau and grandson, and it is easy to calculate the answer to the number of birds, do you still have any questions? 

Why 2a is equal to 34

Pro: Add these two formulas together, a+b+c=26, a-b-c=8, that is, a+b+c+a+(b)+(c)=34 detailed process. b) and (c) are offset by +b and +c.

It becomes b b+c c=0

So, in the end, only A+A remains

That is, a+a=34

So a=17

Is it understandable? 

The addition of a positive number and a negative number is equivalent to the absolute value of the positive number minus the negative number

Summary. a+b+c=20, b+a c=4, b+c a=8, find a, b, c, each = several.

Hello This question is up to me, it will take a little time, please be patient.

Ask about custom messages].

Ask about custom messages].

Hello, this is a=6, b=6, c=8 for this slow course. Just wrote the calculation process. If this manuscript examines the problem of solving a system of ternary equations, you can observe three expressions, add 1 to 1, add 2 and 3, and get a new formula, you can calculate the value of ab from the equation, and then enter any formula to find the value of c.

I've written the calculation by hand and can take a picture of it if I need it.

Ask about custom messages].

Ask about custom messages].

If my answer is helpful to you, please also give a thumbs up (comment in the lower left corner), look forward to your like, your efforts are very important to me, and your support is clear which is the motivation for me to make progress in the code. If you feel that I am satisfied with my simple answer, you can click on my avatar for one-on-one consultation. Finally, I wish you good health and a good mood!

Summary. Let's change the first formula, c a+b-24a+b=c+24,+b+c=a+21+,a+c=b+31, and ask how much abc is.

Let's change the first equation first, c a+b-24, and then change this relation to the following two equations.

b+a+b-24＝a+21

You can know that B is.

In the same way, we can know.

a+a+b-24＝b+31

A is then C is.

Is there a specific calculation formula? I'll explain it to the child.

Good. Step 1 C A+B-24

Substituting c to the other equation b+a+b-24 a+21a+a+b-24 b+31 can find abc

My kid has just finished fourth grade, and if I show him this, can he understand it?

OK. This one is relatively simple.

No solution! Assuming that the four traces of the digital car are ABCD, then: Solution:

It is known that the closed state of the big a+b=8= b+d=8 then a+b=d+b then a=d is substituted into formula 2 is c+d=c+a=6 and in equation 3, a+c=13 and c+a=6 are in conflict, so there is no solution.

a a b c=24 a b b c=21 a b c c=19 a a b c a b b c a b c c=4a 4b 4c=4*(a b c)=24 21 19=64, that is, a b c=64 bent sedan 4=16a=(a a b c)-(a b c)=24-16=8 b=(a b b c)-(a b c)=21-16=5c=(a b c c)-(a b c)=19-16=3 The design can be used to know the buried knot.

a=3b=12

c=6, and the second equation should be b+c=18. Thank.