Question

quero saber a resposta de 3.[4x-9] -2.[x+2]-4

Answer 1

3 (4x - 9) - 2 (x + 2) - 4 = 0
12x - 27 - 2x - 4 - 4 = 0
12x - 2x - 27 - 4 - 4 = 0
10x - 35 = 0
10x = 35
x = 35 / 10
x = 3,5

Espero ter ajudado. Valeu!

Answer 2

3(4x-9)-2(x+2)-4=0∴ 12x-27-2x-4-4=0∴ 12x-2x=8+27∴

10x=35∴ x=35/10∴ x=7/2