-99-8=7x+21

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Solution for -99-8=7x+21 equation:


Simplifying
-99 + -8 = 7x + 21

Combine like terms: -99 + -8 = -107
-107 = 7x + 21

Reorder the terms:
-107 = 21 + 7x

Solving
-107 = 21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-107 + -7x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
-107 + -7x = 21 + 0
-107 + -7x = 21

Add '107' to each side of the equation.
-107 + 107 + -7x = 21 + 107

Combine like terms: -107 + 107 = 0
0 + -7x = 21 + 107
-7x = 21 + 107

Combine like terms: 21 + 107 = 128
-7x = 128

Divide each side by '-7'.
x = -18.28571429

Simplifying
x = -18.28571429

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