20+10=2x-9

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Solution for 20+10=2x-9 equation:


Simplifying
20 + 10 = 2x + -9

Combine like terms: 20 + 10 = 30
30 = 2x + -9

Reorder the terms:
30 = -9 + 2x

Solving
30 = -9 + 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 = -9 + 2x + -2x

Combine like terms: 2x + -2x = 0
30 + -2x = -9 + 0
30 + -2x = -9

Add '-30' to each side of the equation.
30 + -30 + -2x = -9 + -30

Combine like terms: 30 + -30 = 0
0 + -2x = -9 + -30
-2x = -9 + -30

Combine like terms: -9 + -30 = -39
-2x = -39

Divide each side by '-2'.
x = 19.5

Simplifying
x = 19.5

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