Question

alguem para mim ajudar eh serio gente

Answer 1

A) 2(x-3)= -3x+9
2x-6 = -3x+9
2x+3x =9+6
5x=15
X=3

B)5(x-9)=2x+15
5x-45 = 2x+15
5x-3x=15+45
8x=60
X=7,5

C) 9(x-3)=3(x+5)
9x-27=3x+15
9x-3x= 15+27
6x=42
X=7

D) 4(x-2)=-4-8-7+20
4x-8=1
4x=1+8
X=9/4
X=2,25

E) 5(x-3)-20=x+100
5x-35 = x+100
5x-x=100+35
4x=135
X=33,75

F)9(x-x)-10=-10+90
-10=80

G)4(x-x)-100=-10x
-100/-10=x
X=10

H)100(x+x)=200
200x=200
X=1