x+(54+x)=90

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Solution for x+(54+x)=90 equation:


Simplifying
x + (54 + x) = 90

Remove parenthesis around (54 + x)
x + 54 + x = 90

Reorder the terms:
54 + x + x = 90

Combine like terms: x + x = 2x
54 + 2x = 90

Solving
54 + 2x = 90

Solving for variable 'x'.

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

Add '-54' to each side of the equation.
54 + -54 + 2x = 90 + -54

Combine like terms: 54 + -54 = 0
0 + 2x = 90 + -54
2x = 90 + -54

Combine like terms: 90 + -54 = 36
2x = 36

Divide each side by '2'.
x = 18

Simplifying
x = 18

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