Question

Resolva as equações abaixo:

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

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

Answer 1

20X - 12 - 192 + 64X - 36X + 12 = 96
48X - 192 = 96
48X = 96 + 192
48X = 288
X = 288/48
X = 6
5X + 5 + 6X + 12 = 9X + 27
11X - 9X = 27 - 5 - 12
2X = 10
X = 10/2
X = 5