(4x+7)+(5x-7)=90

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Solution for (4x+7)+(5x-7)=90 equation:


Simplifying
(4x + 7) + (5x + -7) = 90

Reorder the terms:
(7 + 4x) + (5x + -7) = 90

Remove parenthesis around (7 + 4x)
7 + 4x + (5x + -7) = 90

Reorder the terms:
7 + 4x + (-7 + 5x) = 90

Remove parenthesis around (-7 + 5x)
7 + 4x + -7 + 5x = 90

Reorder the terms:
7 + -7 + 4x + 5x = 90

Combine like terms: 7 + -7 = 0
0 + 4x + 5x = 90
4x + 5x = 90

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

Solving
9x = 90

Solving for variable 'x'.

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

Divide each side by '9'.
x = 10

Simplifying
x = 10

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