Answer:Simplifying
4x + -10 = 42
Reorder the terms:
-10 + 4x = 42
Solving
-10 + 4x = 42
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '10' to each side of the equation.
-10 + 10 + 4x = 42 + 10
Combine like terms: -10 + 10 = 0
0 + 4x = 42 + 10
4x = 42 + 10
Combine like terms: 42 + 10 = 52
4x = 52
Divide each side by '4'.
x = 13
Simplifying
x = 13