90+x+(2x+21)=

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Solution for 90+x+(2x+21)= equation:


Simplifying
90 + x + (2x + 21) = 0

Reorder the terms:
90 + x + (21 + 2x) = 0

Remove parenthesis around (21 + 2x)
90 + x + 21 + 2x = 0

Reorder the terms:
90 + 21 + x + 2x = 0

Combine like terms: 90 + 21 = 111
111 + x + 2x = 0

Combine like terms: x + 2x = 3x
111 + 3x = 0

Solving
111 + 3x = 0

Solving for variable 'x'.

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

Add '-111' to each side of the equation.
111 + -111 + 3x = 0 + -111

Combine like terms: 111 + -111 = 0
0 + 3x = 0 + -111
3x = 0 + -111

Combine like terms: 0 + -111 = -111
3x = -111

Divide each side by '3'.
x = -37

Simplifying
x = -37

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