(5x-20)+(4x+4)=90

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Solution for (5x-20)+(4x+4)=90 equation:


Simplifying
(5x + -20) + (4x + 4) = 90

Reorder the terms:
(-20 + 5x) + (4x + 4) = 90

Remove parenthesis around (-20 + 5x)
-20 + 5x + (4x + 4) = 90

Reorder the terms:
-20 + 5x + (4 + 4x) = 90

Remove parenthesis around (4 + 4x)
-20 + 5x + 4 + 4x = 90

Reorder the terms:
-20 + 4 + 5x + 4x = 90

Combine like terms: -20 + 4 = -16
-16 + 5x + 4x = 90

Combine like terms: 5x + 4x = 9x
-16 + 9x = 90

Solving
-16 + 9x = 90

Solving for variable 'x'.

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

Add '16' to each side of the equation.
-16 + 16 + 9x = 90 + 16

Combine like terms: -16 + 16 = 0
0 + 9x = 90 + 16
9x = 90 + 16

Combine like terms: 90 + 16 = 106
9x = 106

Divide each side by '9'.
x = 11.77777778

Simplifying
x = 11.77777778

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