Answer:
x = 20
Step-by-step explanation:
4(x + 7) - 5x + 2 = 10
open the parenthesis
4 * x + 4 * 7 - 5x + 2 = 10
4x + 28 - 5x + 2 = 10
combine like terms
-x + 30 = 10
subtract 30 from both sides of the equation
-x + 30 - 30 = 10 - 30
-x = 10 - 30
-x = -20
mutiply the equation by -1
-1 * -x = -20 * -1
x = 20
