-13-7x=9x+20

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Solution for -13-7x=9x+20 equation:


Simplifying
-13 + -7x = 9x + 20

Reorder the terms:
-13 + -7x = 20 + 9x

Solving
-13 + -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.
-13 + -7x + -9x = 20 + 9x + -9x

Combine like terms: -7x + -9x = -16x
-13 + -16x = 20 + 9x + -9x

Combine like terms: 9x + -9x = 0
-13 + -16x = 20 + 0
-13 + -16x = 20

Add '13' to each side of the equation.
-13 + 13 + -16x = 20 + 13

Combine like terms: -13 + 13 = 0
0 + -16x = 20 + 13
-16x = 20 + 13

Combine like terms: 20 + 13 = 33
-16x = 33

Divide each side by '-16'.
x = -2.0625

Simplifying
x = -2.0625

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