Question

3.(x+2)+5=x+12 mim ajudem por favor e nessa aki tanbn x+4.(x-1)=9-2.(x+3)

Answer 1

3.(x + 2) + 5 = x + 12
3x + 6 + 5 = x + 12
3x + 11 = x + 12
3x - x = 12 - 11
2x = 1
x = 1/2

b)
x + 4.(x - 1) = 9 - 2.(x + 3)
x + 4x - 4 = 9 - 2x - 6
5x - 4 = 9 - 6 - 2x
5x - 4 = 3 - 2x
5x + 2x = 4 + 3
7x = 7
x = 7/7
x = 1