Question

12x + 3x + 8 + 4x + 120 = 3x - 8 x + 300

Answer 1

12x+3x+8+4x+120=3x-8x+300
12x+3x+4x-3x+8x=300-8-120
24x=172
x=172/24 =86/12 = 43/6
Resposta: 43/6

Answer 2

12x + 3x + 8 + 4x + 120 = 3x - 8 x + 300
19x + 128 = - 5x + 300
19x + 5x = 300 - 128
24/24x  = 172 /24
x = 172/24