Can that brother help me find 14 rational number calculations, solve equations, and simplify evaluat

7(2x-1)-3(4x-1)=4(3x+2)-1(5y+1)+ 1-y)= 9y+1)+ 1-3y)[ 2)-4 ]=x+2

20%+(1-20%)(320-x)=320×40%2(x-2)+2=x+1

15-(8-5x)=7x+(4-3x)

3(x-7)-2[9-4(2-x)]=223/2[2/3(1/4x-1)-2]-x=25x+1-2x=3x-2

3y-4=2y+1

87x*13=5

7z/93=41

15x+863-65x=54

x3-4x2y+5xy2-3y3)-(2xy2-4x3+x2y)；

Subtract 3a4-a3+2a-1 from a polynomial to get 5a4+3a2-7a+2, and find this polynomial.

2x2-x-1)-(x2-x-)3(x2-1), where x=1

9(x-2)-y(x-5)

1) Simplify the whole formula.

2) When x=5, find the solution of y.

5(9+a)×b-5(5+b)×a

1) Simplify the whole formula.

2) When a=5 7, find the value of the formula.

62g+62(g+b)-b

1) Simplify the whole formula.

2) When g=5 7, find the solution of b.

3(x+y)-5(4+x)+2y

1) Simplify the whole formula.

2) When x=7, y=-4

x+y)(x-y)

1) Simplify the whole formula.

2) When a=4, b=-2

2ab+a×a-b

1) Simplify the whole formula.

2) When x=5, y=-2

1) Simplify the whole formula.

2) When x=5, y=-2

1) Simplify the whole formula.

2) When x=5, y=-2

1) Simplify the whole formula.

2) When x=5, y=-2

xy+3x-3(x+y)

1) Simplify the whole formula.

2) When x=5, find the solution of y.

3(x+y)+2(x-y)+3xy

1) Simplify the whole formula.

2) When x=5, find the solution of y.

x+y-3(x-y)

1) Simplify the whole formula.

2) When x=5, y=-2

I'm begging for !! Yours is homework, and so am I.

Hehe, don't bring this!

Simplification is the first in the evaluation.

1) 5a-2b+3b-4a-1 a= -1 b=2

2)7x²-3x²-2x-2x²=5=6x x= -2

3) 2x [6-2(x-2)] where x=-2

4) (5a 2a 3 4a ) a 3a a ), where a 2

5) 3x +4x-2x -x+x -3x-1 where x = -3

6)-3[y-(3x2-3xy)]-y+2(4x2-4xy)], where x=2, y=1 2

7) 2x -3xy+y -2xy-2x +5xy-2y+1 where x=22 7

8) 2x y + 4x y - 3xy - 5xy where x = 1 y = -1

9）9x+6x²2 -3(x-2/3x²2).where x=-2

10)1 4(-4x +2x-8)-(1 2x-1) where x=1 2

Question 1: (+7/13) + (17) + (1/1/3) - (7)-(2 and 1/3) + (preparation - 7/13).

Question 2: (+17 and 3/4)-(1/2)- (Hello and 1/4) - (Hello and 1/4) for you, skyhunter002 answers your questions.

If you don't understand anything about this question, you can ask it, and if you are satisfied, remember.

If you have other questions, click to ask me for help after this question, and it is not easy to answer the question, please understand, thank you.

Good luck with your studies.

Question 1: (7/13) (17) (1/1/3) (7) (1/2) (1/3) (7/13) 7 47;13＋17－1－1＆＃47；3－7＋2＋1＆＃47；3－7＆＃47；13＝（7＆＃47；13－7＆＃47；13）＋（17－7）＋（2＋1＆＃47；3－1－1＆＃47；3）＝0＋10＋1＝11；Question 2: (17 and 3/4) (6 25) (8 and 1/2) (0 75) 22 and 1/4 17 3 47;4 6 Si Tan 25 8 1 47;2－0．75－22－1＆＃47；4＝（17－6＋8－22）＋（3＆＃47；4－0．25＋1＆＃47；2－0．75－1＆＃47；4）＝－3＋0＝－3；Hello, I'm glad to answer for you, skyhunter002 for you to answer your questions, if you don't understand anything about this question, you can ask, if you are satisfied, remember that if there are other questions, click to ask me for help, it's not easy to answer the question, please understand, Xie Jiansheng Xie 8628 I wish you progress in learning.

Two-thirds minus one-half) - (one-third minus five-sixths) = two-thirds minus one-half minus one-third plus five-sixths = four-sixths.

minus three-fifths) + (four-fifths = three-fifths - five-fifths of the clear paragraph of the tour =

minus 6/13) + (minus 7/13) - (2) = minus 6/13 grinding - 7/13 + 2 = 1

First extract the 60 in the following brackets, then add and subtract the 3 fractions to get the number 1, and finally 60 and multiply the fractions in the previous brackets respectively to get the number plus or minus. The conclusion is -29