x+x+15=30

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Solution for x+x+15=30 equation:


Simplifying
x + x + 15 = 30

Reorder the terms:
15 + x + x = 30

Combine like terms: x + x = 2x
15 + 2x = 30

Solving
15 + 2x = 30

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 2x = 30 + -15

Combine like terms: 15 + -15 = 0
0 + 2x = 30 + -15
2x = 30 + -15

Combine like terms: 30 + -15 = 15
2x = 15

Divide each side by '2'.
x = 7.5

Simplifying
x = 7.5

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