189-99-10=x

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Solution for 189-99-10=x equation:


Simplifying
189 + -99 + -10 = x

Combine like terms: 189 + -99 = 90
90 + -10 = x

Combine like terms: 90 + -10 = 80
80 = x

Solving
80 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
80 + -1x = x + -1x

Combine like terms: x + -1x = 0
80 + -1x = 0

Add '-80' to each side of the equation.
80 + -80 + -1x = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -1x = 0 + -80
-1x = 0 + -80

Combine like terms: 0 + -80 = -80
-1x = -80

Divide each side by '-1'.
x = 80

Simplifying
x = 80

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