Question

X (6 menos 2) igual a X mas 15​

Answer 1

Explicación paso a paso:

$x(6 - 2) = x + 15 \\ x(4) = x + 15 \\ 4x - x = 15 \\ 3x = 15 \\ x = 15 \div 3 \\ x = 5 \\ comprobación \\ 5(6 - 2) = 5 + 15 \\ 5(4) = 20 \\ 20 = 20$