Question

a) 2 (x -3) = -3 (x - 3)

b) 4 (5x -3) -64 (3 -x) -3 (12x - 4) =96

c) 5 (x +1) +6 (x + 2) = 9 (x + 3)

Answer 1

A) 2 (x -3) = -3 (x - 3)
2(x-2)+3(x-3)=0
(2+3).(x-3)=0
5(x-3)=0
x-3=0
x=3

b) 4 (5x -3) -64 (3 -x) -3 (12x - 4) =96
20x-12-192+64x-36x+12=96
48x-192=96
48x=96+192
48x=288
x=6


c) 5 (x +1) +6 (x + 2) = 9 (x + 3)
5x+5+6x+12=9x+27
11x+17=9x+27
11x-9x=-21-17
2x=10
x=5

Bons estudos. Espero ter ajudado.