-10+x+x=-2

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Solution for -10+x+x=-2 equation: 


Simplifying
-10 + x + x = -2

Combine like terms: x + x = 2x
-10 + 2x = -2

Solving
-10 + 2x = -2

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 + 2x = -2 + 10

Combine like terms: -10 + 10 = 0
0 + 2x = -2 + 10
2x = -2 + 10

Combine like terms: -2 + 10 = 8
2x = 8

Divide each side by '2'.
x = 4

Simplifying
x = 4

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