10x+(-42)+(-31x)=

Solution for 10x+(-42)+(-31x)= equation:

Simplifying
10x + (-42) + (-31x) = 0
10x + -42 + (-31x) = 0

Reorder the terms:
-42 + 10x + (-31x) = 0

Combine like terms: 10x + (-31x) = -21x
-42 + -21x = 0

Solving
-42 + -21x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '42' to each side of the equation.
-42 + 42 + -21x = 0 + 42

Combine like terms: -42 + 42 = 0
0 + -21x = 0 + 42
-21x = 0 + 42

Combine like terms: 0 + 42 = 42
-21x = 42

Divide each side by '-21'.
x = -2

Simplifying
x = -2