(2x+4)+(7x-8)=90

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Solution for (2x+4)+(7x-8)=90 equation:


Simplifying
(2x + 4) + (7x + -8) = 90

Reorder the terms:
(4 + 2x) + (7x + -8) = 90

Remove parenthesis around (4 + 2x)
4 + 2x + (7x + -8) = 90

Reorder the terms:
4 + 2x + (-8 + 7x) = 90

Remove parenthesis around (-8 + 7x)
4 + 2x + -8 + 7x = 90

Reorder the terms:
4 + -8 + 2x + 7x = 90

Combine like terms: 4 + -8 = -4
-4 + 2x + 7x = 90

Combine like terms: 2x + 7x = 9x
-4 + 9x = 90

Solving
-4 + 9x = 90

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 9x = 90 + 4

Combine like terms: -4 + 4 = 0
0 + 9x = 90 + 4
9x = 90 + 4

Combine like terms: 90 + 4 = 94
9x = 94

Divide each side by '9'.
x = 10.44444444

Simplifying
x = 10.44444444

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