Question

a) x - (8x - 69) + (6x - 50) = 2x - (x - 5)
b) 4x - (3x + 5) + (x + 7) = 2x - 3(x - 1) POrfavor dare crona y corazon

Answer 1

a) x - (8x - 69) + (6x - 50) = 2x - (x - 5)
x - 8x + 69 + 6x - 50 = 2x - x + 5
x - 8x + 6x + 69 - 50 = 2x - x + 5
- x + 19 = x + 5
- x - x = 5 - 19
-2x = - 14 (/-2)
x = 7
b) 4x - (3x + 5) + (x + 7) = 2x - 3 (x - 1)
4x - 3x - 5 + x + 7 = 2x - 3x + 3
4x - 3x + x - 5 + 7 = 2x - 3x + 3
2x + 2 = -x + 3
2x + x = 3 - 2
3x = 1
x = 1/3