-75-7x=9x+21

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Solution for -75-7x=9x+21 equation:


Simplifying
-75 + -7x = 9x + 21

Reorder the terms:
-75 + -7x = 21 + 9x

Solving
-75 + -7x = 21 + 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.
-75 + -7x + -9x = 21 + 9x + -9x

Combine like terms: -7x + -9x = -16x
-75 + -16x = 21 + 9x + -9x

Combine like terms: 9x + -9x = 0
-75 + -16x = 21 + 0
-75 + -16x = 21

Add '75' to each side of the equation.
-75 + 75 + -16x = 21 + 75

Combine like terms: -75 + 75 = 0
0 + -16x = 21 + 75
-16x = 21 + 75

Combine like terms: 21 + 75 = 96
-16x = 96

Divide each side by '-16'.
x = -6

Simplifying
x = -6

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