Question

a) 3X-2(X-3)=10-5(2X-4)
b)-3(X-9)=100+(5-3X).7
c)10(x-3)-3x=10x2(2x4)
d)12(x-3)-4x=10(2x-4)+15
boa noite alguem pode mi ajudar

Answer 1

A) 3x-2x+6=10-10x+20
x+6=30-10x
 x+10x=30-6
 11x=24
x=24/11

B) -3x+27=100+35-21x
 -3x+27=135-21x   
 -3x+21x=135-27
  18x-108
  x=108/18
  x=6

C)  10x-30-3x=10*2*8
7x-30=160
7x=160+30
7x=190
x=190/7

D)  12x-36-4x=20x-40+15
8x-36=20x-25
8x-20x=-25+36
-12x=11
x=11/12