Question

Resolva as equacoes a)x+2(x+3) b)72=48+x?

Answer 1

Boa tarde!

$a) \: x + 2(x + 3) \\ x + 2 + 6 = 0 \\ x + 8 = 0\\ x = - 8\\ \\ b) \: 72 = 48 + x \\ - x = 48 - 72 \\ - x = - 24 \: \: ^{ \times ( - 1)} \\ x = 24$

Espero ter ajudado!
Bons estudos! ♡

Answer 2

a) (x+2).(x+3)= x^2+3x+2x+6 = x^2+5x+6

b) 48+x=72 = x=72-48

x= 24