Question

equacao -3{x-5}-2{2x+1}=-8

Answer 1

Olá,

Vamos lá,

-3{x-5}-2{2x+1}=-8
- 3x + 15 - 4x - 2 = -8
- 3x - 4x = -8 - 15 + 2
- 7 x = -21     *(-1)
7x = 21
x = 21 /7
x = 3

Answer 2

-3{X - 5 } - 2 {2 X + 1 } = -8
-3 X + 15  -  4 X  - 2  = - 8
-3 X - 4 X + 15 - 2 = - 8
-7 X + 13 = - 8
-7 X = -8 - 13
-7 X = -21
X = -21/-7
X = 3