Question

como resolver isso??
c) 4 (×-2)-2×(×+1)=4

Answer 1

c)
4.(x - 2) - 2.(× + 1) = 4
4x - 8 - 2x - 2 = 4
2x - 10 = 4
2x = 4 + 10
2x = 14
x = 14/2
x = 7