Question

a) 7(x + 2) - 2(x – 4) = 6(x + 2)-9;
c) 3(2x - 7) - 5(x - 2) - 3 = 2(x - 7) + 7;
e) 5(2x + 1) - 8(1 - x) = 2(3x + 2) + 5;
g) 18(2 - x) + 6(7x - 12) = 5(2x - 1) - 3;
i) 4(9x - 4), 3(3x – 10) + 11 = 4(2x - 21
2(5x -- 4) + 6(4x – 3) + 11 = 6(3x --4) -
lor reale e
ati in​

Answer 1

Explicação passo-a-passo:

A) 7x+ 14 - 2x + 8 = 6x + 12 - 9

7x - 2x - 6x = +12 - 9 - 14 - 8

- x = + 12 - 31

- x = - 19. (-1)

X = + 19