7x-10=9x+20

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Solution for 7x-10=9x+20 equation:


Simplifying
7x + -10 = 9x + 20

Reorder the terms:
-10 + 7x = 9x + 20

Reorder the terms:
-10 + 7x = 20 + 9x

Solving
-10 + 7x = 20 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-10 + 7x + -9x = 20 + 9x + -9x

Combine like terms: 7x + -9x = -2x
-10 + -2x = 20 + 9x + -9x

Combine like terms: 9x + -9x = 0
-10 + -2x = 20 + 0
-10 + -2x = 20

Add '10' to each side of the equation.
-10 + 10 + -2x = 20 + 10

Combine like terms: -10 + 10 = 0
0 + -2x = 20 + 10
-2x = 20 + 10

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

Divide each side by '-2'.
x = -15

Simplifying
x = -15

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