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1)24-6x=15
Solution: 24-15=6x (shift).
6x=9 (merge similar items).
x = coefficient of 1).
So, x= is the solution of the original equation.
2) Is this inscription correct? )
Solution: 45-5x=
5x = move items, merge items of the same kind).
x = coefficient of 1).
So, x= is the solution of the original equation.
3)25x-16x=
Solution: 9x = merge similar terms).
x = coefficient of 1).
So, x= is the solution of the original equation.
4) Solution: remove parentheses).
Move items, merge items of the same kind).
x = 18 (coefficient of 1).
So, x=18 is the solution of the original equation.
5) Solution: x=21 (move terms, merge similar terms).
So, x=21 is the solution of the original equation.
6) Solution: 700x=98 (multiplication of both sides of the equation by 1000) x=the coefficient of transformation is 1).
So, x= is the solution of the original equation.
7) Solution: Move items, merge similar items).
x = coefficient of 1).
So, x= is the solution of the original equation.
Solution: 4x = move terms, merge similar terms).
x = coefficient of 1).
So, x= is the solution of the original equation.
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1)2x+8=16
2)x/5=10
3)x+7x=8
4)9x-3x=6
5)6x-8=4
6)5x+x=9
7)x-8=6x
8)4/5x=20
9)2x-6=12
10)7x+7=14
11)6x-6=0
12)5x+6=11
13)2x-8=10
14)1/2x-8=4
15)x-5/6=7
16)3x+7=28
17)3x-7=26
18)9x-x=16
19)24x+x=50
20)6/7x-8=4
30)3x-8=30
31)6x+6=12
32)3x-3=1
33)5x-3x=4
34)2x+16=19
35)5x+8=19
36)14-6x=8
37)15+6x=27
38)5-8x=4
39)7x+8=15
40)9-2x=1
41)4+5x=9
42)10-x=8
43)8x+9=17
44)9+6x=14
45)x+9x=4+7
46)2x+9=17
47)8-4x=6
48)6x-7=12
49)7x-9=8
50)x-56=1
51)8-7x=1
52)x-30=12
53)6x-21=21
54)6x-3=6
55)9x=18
56)4x-18=13
57)5x+9=11
58)6-2x=11
59)x+4+8=23
60)7x-12=8
In fact, it is enough to do so much, and the equation only seeks to master the method, not to do all the problems in the world.
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Let the first barrel have x kilograms and the second barrel have kilograms.
x = kilograms of oil in the first barrel.
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Solution: The first barrel has x kilograms of oil.
Got: x=
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Take advantage of the nature of the equation: add and subtract multiply and divide the same non-zero number on both sides of the equation at the same time, and the equation still holds.
3x+subtract 3x= from both sides at the same time
Divide both sides by 3 x = the rest in the same way.
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Such a simple question will not be!
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The title is not very clear, and it is not clear to see.
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Take advantage of the laws of arithmetic. The commutative and associative properties of addition, and the commutative, associative, and distributive properties of multiplication, can be used to make calculations easier. >>>More
The definition of the common division is to convert the different denominator fraction into the same denominator fraction equal to the original size, so as long as it is a common multiple to achieve the purpose of the common divide, and taking the least common multiple is only the easiest way.
In the past year, the children have made comparative improvements in the mastery of learning methods; Significant improvement in academic performance; The hands-on ability has been strengthened, the children's sense of responsibility and social responsibility has been strengthened, and the knowledge of various subjects has been expanded relatively well, and the progress has been obvious; Physically and mentally healthy, mature and steady.