-100-7x=172+9x

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Solution for -100-7x=172+9x equation:


Simplifying
-100 + -7x = 172 + 9x

Solving
-100 + -7x = 172 + 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.
-100 + -7x + -9x = 172 + 9x + -9x

Combine like terms: -7x + -9x = -16x
-100 + -16x = 172 + 9x + -9x

Combine like terms: 9x + -9x = 0
-100 + -16x = 172 + 0
-100 + -16x = 172

Add '100' to each side of the equation.
-100 + 100 + -16x = 172 + 100

Combine like terms: -100 + 100 = 0
0 + -16x = 172 + 100
-16x = 172 + 100

Combine like terms: 172 + 100 = 272
-16x = 272

Divide each side by '-16'.
x = -17

Simplifying
x = -17

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