2x-20+x+8=45

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Solution for 2x-20+x+8=45 equation:


Simplifying
2x + -20 + x + 8 = 45

Reorder the terms:
-20 + 8 + 2x + x = 45

Combine like terms: -20 + 8 = -12
-12 + 2x + x = 45

Combine like terms: 2x + x = 3x
-12 + 3x = 45

Solving
-12 + 3x = 45

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 3x = 45 + 12

Combine like terms: -12 + 12 = 0
0 + 3x = 45 + 12
3x = 45 + 12

Combine like terms: 45 + 12 = 57
3x = 57

Divide each side by '3'.
x = 19

Simplifying
x = 19

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