(90-x)=19

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Solution for (90-x)=19 equation:


Simplifying
(90 + -1x) = 19

Remove parenthesis around (90 + -1x)
90 + -1x = 19

Solving
90 + -1x = 19

Solving for variable 'x'.

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

Add '-90' to each side of the equation.
90 + -90 + -1x = 19 + -90

Combine like terms: 90 + -90 = 0
0 + -1x = 19 + -90
-1x = 19 + -90

Combine like terms: 19 + -90 = -71
-1x = -71

Divide each side by '-1'.
x = 71

Simplifying
x = 71

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