9x+7=8x+20

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Solution for 9x+7=8x+20 equation:


Simplifying
9x + 7 = 8x + 20

Reorder the terms:
7 + 9x = 8x + 20

Reorder the terms:
7 + 9x = 20 + 8x

Solving
7 + 9x = 20 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
7 + 9x + -8x = 20 + 8x + -8x

Combine like terms: 9x + -8x = 1x
7 + 1x = 20 + 8x + -8x

Combine like terms: 8x + -8x = 0
7 + 1x = 20 + 0
7 + 1x = 20

Add '-7' to each side of the equation.
7 + -7 + 1x = 20 + -7

Combine like terms: 7 + -7 = 0
0 + 1x = 20 + -7
1x = 20 + -7

Combine like terms: 20 + -7 = 13
1x = 13

Divide each side by '1'.
x = 13

Simplifying
x = 13

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