Question

d) 4(x-10)=-6(2-x)-6x
e) 2(x+1)-3(x-2)=x+7
f) 5/x-7 =3/x-2
g). 4/x-3 = 5/x-2

Answer 1

d) 4 (x - 10) = - 6 (2 - x) - 6x

4x - 40 = - 12 + 6x - 6x

4x - 40 = - 12  

4x = - 12 + 40  

4x = 28

x = 28/4

x = 7

e)2·(x+1)-3·(x-2)= x+7

2x+2-3x+6=x+7

2x-3x-x=7-2-6

-2x=-1

x=-2/-1

x=-1

f) 5/(x - 7) = 3/(x - 2)

5 · (x - 2) = 3 · (x - 7)  

5x - 10 = 3x - 21

5x - 3x = -21 + 10  

2x = -11

x = -11/2