30-2x=15

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Solution for 30-2x=15 equation: 


Simplifying
30 + -2x = 15

Solving
30 + -2x = 15

Solving for variable 'x'.

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

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

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

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

Divide each side by '-2'.
x = 7.5

Simplifying
x = 7.5

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