6-x=90

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Solution for 6-x=90 equation: 


Simplifying
6 + -1x = 90

Solving
6 + -1x = 90

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + -1x = 90 + -6

Combine like terms: 6 + -6 = 0
0 + -1x = 90 + -6
-1x = 90 + -6

Combine like terms: 90 + -6 = 84
-1x = 84

Divide each side by '-1'.
x = -84

Simplifying
x = -84

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