30=2x+72

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Solution for 30=2x+72 equation:


Simplifying
30 = 2x + 72

Reorder the terms:
30 = 72 + 2x

Solving
30 = 72 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
30 + -2x = 72 + 2x + -2x

Combine like terms: 2x + -2x = 0
30 + -2x = 72 + 0
30 + -2x = 72

Add '-30' to each side of the equation.
30 + -30 + -2x = 72 + -30

Combine like terms: 30 + -30 = 0
0 + -2x = 72 + -30
-2x = 72 + -30

Combine like terms: 72 + -30 = 42
-2x = 42

Divide each side by '-2'.
x = -21

Simplifying
x = -21

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