Question

Determinar o valor de x na equação 4x - 5 = 2x + 15?

Answer 1

Olá,

$\tt \: 4x - 5 = 2x + 15 \\ \\ \tt4x - 2x = 15 + 5 \\ \\ \tt2x = 20 \\ \\ \tt \: x = \frac{20}{2} \\ \\ \boxed{ \boxed{\tt \: x = 10}}$