90=64+(8+x)

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Solution for 90=64+(8+x) equation:


Simplifying
90 = 64 + (8 + x)

Remove parenthesis around (8 + x)
90 = 64 + 8 + x

Combine like terms: 64 + 8 = 72
90 = 72 + x

Solving
90 = 72 + 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.
90 + -1x = 72 + x + -1x

Combine like terms: x + -1x = 0
90 + -1x = 72 + 0
90 + -1x = 72

Add '-90' to each side of the equation.
90 + -90 + -1x = 72 + -90

Combine like terms: 90 + -90 = 0
0 + -1x = 72 + -90
-1x = 72 + -90

Combine like terms: 72 + -90 = -18
-1x = -18

Divide each side by '-1'.
x = 18

Simplifying
x = 18

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