Question

Me ajudem.
1) resolva corretamente.
a) 3. ( X + 4 ) - 2. ( X - 1 ) = - X + 10

b) 6x - 22 = 2x + 6

Answer 1

a) 

3.(x + 4) - 2.(x - 1)  = - x + 10
3x + 12 - 2x + 2 = - x + 10
x + 14 = - x + 10
x + x = 10 - 14
2x = - 4

x = - 4 / 2
x = -2

b)

6x - 22 = 2x + 6
6x - 2x = 6 + 22
4x = 28
x = 28/4
x = 7