Question

Resolva as equações
a)-x+2x+16
b)9x=5x+5

Answer 1

a)
$- x + 2 \times + 16 \\ - \times + 2 \times + 16 \\ ( - 1 + 2) \times + 16 \\ 1 \times + 16 \\ \times + 16$
b)
$9 \times = 5 \times + 5 \\ 9 \times - 5 \times = 5 \\ 4 \times = 5 \\ x = \frac{5}{4}$