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Simplifying
2x + -10 = 10 + -3x

Reorder the terms:
-10 + 2x = 10 + -3x

Solving
-10 + 2x = 10 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
-10 + 2x + 3x = 10 + -3x + 3x

Combine like terms: 2x + 3x = 5x
-10 + 5x = 10 + -3x + 3x

Combine like terms: -3x + 3x = 0
-10 + 5x = 10 + 0
-10 + 5x = 10

Add '10' to each side of the equation.
-10 + 10 + 5x = 10 + 10

Combine like terms: -10 + 10 = 0
0 + 5x = 10 + 10
5x = 10 + 10

Combine like terms: 10 + 10 = 20
5x = 20

Divide each side by '5'.
x = 4

Simplifying
x = 4
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