Question

a) 4(x+10)=2(x-5)=0


b) 5(x-3)-4(x-2)=3(1-2x)

Answer 1

a)4x+40=2x-10
4x-2x=-10-40
2x=-50
x=-50/2
x=-25
b) 5x-15-4x+8=3-6x
x-7=3-6x
x+6x=3+7
7x=10
x=10/7

Answer 2

n entendi a A mais vo supor a seja 4(x+10)=2(x-5), logo obtemos da multiplicação
4x+40=2x-10
2x-4x=40+10
-2x=50
x=50/(-2)
x=-25
agr a B
5(x-3)-4(x-2)=3(1-2x)
5x-15-4x+8=3-6x
15-8+3=5x-4x+6x
10=7x
10/7=x