(7x+2)+(2x+7)=90

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Solution for (7x+2)+(2x+7)=90 equation:


Simplifying
(7x + 2) + (2x + 7) = 90

Reorder the terms:
(2 + 7x) + (2x + 7) = 90

Remove parenthesis around (2 + 7x)
2 + 7x + (2x + 7) = 90

Reorder the terms:
2 + 7x + (7 + 2x) = 90

Remove parenthesis around (7 + 2x)
2 + 7x + 7 + 2x = 90

Reorder the terms:
2 + 7 + 7x + 2x = 90

Combine like terms: 2 + 7 = 9
9 + 7x + 2x = 90

Combine like terms: 7x + 2x = 9x
9 + 9x = 90

Solving
9 + 9x = 90

Solving for variable 'x'.

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

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

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

Combine like terms: 90 + -9 = 81
9x = 81

Divide each side by '9'.
x = 9

Simplifying
x = 9

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