Question

A) 5(x+1)=3(x-1)
B) 6(x+1)=2(x-1)

Answer 1

Resposta:

$5(x + 1) = 3(x - 1) \\5x + 5 = 3x - 3 \\ 5 x - 3x = - 3 - 5 \\ 2x = - 8 \\ x = \frac{ - 8}{2} \\ x = - 4 \\ \\ 6(x + 1) = 2(x - 1) \\ 6x + 6 = 2x - 2 \\ 6x - 2x = - 2 - 6 \\ 4x = - 8 \\ x = \frac{ - 8}{4} \\ x = - 2$

Answer 2

$5(x + 1) = 3(x - 1) \\ 5x + 5 = 3x - 3 \\ 5x - 3x = - 3 - 5 \\ 2x = - 8 \\ x = - 8 \div 2 \\ x = - 4$

$6(x + 1) = 2(x - 1) \\ 6x + 6 = 2x - 2 \\ 6x - 2x = - 2 - 6 \\ 2x = - 8 \\ x = - 8 \div 4 \\ x = -2$