Question

7) resolva as equações:​

Answer 1

a)

$2x - 1 + x + 3 = 8\\ 3x = 8 - 2 \\ 3x = 6 \\ x = \frac{6}{3} = 2$

b)

$3x + x + 2 = 10 \\ 4x = 10 - 2 \\ 4x = 8 \\ x = \frac{8}{4} \\ x = 2$