7-x+3=9x+20

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Solution for 7-x+3=9x+20 equation:


Simplifying
7 + -1x + 3 = 9x + 20

Reorder the terms:
7 + 3 + -1x = 9x + 20

Combine like terms: 7 + 3 = 10
10 + -1x = 9x + 20

Reorder the terms:
10 + -1x = 20 + 9x

Solving
10 + -1x = 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 + -1x + -9x = 20 + 9x + -9x

Combine like terms: -1x + -9x = -10x
10 + -10x = 20 + 9x + -9x

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

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

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

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

Divide each side by '-10'.
x = -1

Simplifying
x = -1

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