Question

5(×-1)+3(×+1)=30 me ajudem ??

Answer 1

Olá!

$5 \times (x - 1) + 3 \times (x + 1) = 30 \\ 5x - 5 + 3x + 3 = 30 \\ 8x = 30 + 5 - 3 \\ 8x = 32 \\ x = 32 \div 8 \\ x = 4$

Answer 2

Olá

5(x - 1) + 3(x + 1) = 30

5x - 5 + 3x + 3 = 30

8x = 30 + 2 

x = 32 / 8 

x = 4