Question

valendo 54 pontos

equações

A) -5x+3-2x=1=0
B) 9-3x= - 5=4x
C) 3x1= - x+
D) -4x-1-3x= - 2x+7x-1

Answer 1

Olá!!!
-5x+3-2x=1
-5x-2x=1-3
-7x=-2 (-1)
7x=2
x=7/2

9-3x=-5=4x
9-3x+5-4x=0
-3x-4x=-9-5
-7x=-14 (-1) 7x=14
x=14/7  x= 2

-4x-1-3x=-2x+7x-1
-7x-1=5x-1
-7x-5x=-1+1
-12x=0
x=0/12
x=0