Question

d)2x/3 +10=160
e)5(x+2)=3(x-5)
f)(-x+2)+7=x(2-8)

Answer 1

d) antes de tudo, via MMC (3,no caso), elimina os denominadores

2x+10.3=160.3

2x= 480-30

x= 450/2=225

e) Via distributiva,

5x+5.2=3x-3.-5

5x-3x= -(-15) [ou +15, se preferir]-10

2x= 5

x=5/2=2,5

f)-x+2+7=2x-8x

9=-5x

x= -9/5=-1,8