x+x+15+x-12=63

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Solution for x+x+15+x-12=63 equation:


Simplifying
x + x + 15 + x + -12 = 63

Reorder the terms:
15 + -12 + x + x + x = 63

Combine like terms: 15 + -12 = 3
3 + x + x + x = 63

Combine like terms: x + x = 2x
3 + 2x + x = 63

Combine like terms: 2x + x = 3x
3 + 3x = 63

Solving
3 + 3x = 63

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 3x = 63 + -3

Combine like terms: 3 + -3 = 0
0 + 3x = 63 + -3
3x = 63 + -3

Combine like terms: 63 + -3 = 60
3x = 60

Divide each side by '3'.
x = 20

Simplifying
x = 20

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