(2x+5)+(8x+15)=90

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Solution for (2x+5)+(8x+15)=90 equation:


Simplifying
(2x + 5) + (8x + 15) = 90

Reorder the terms:
(5 + 2x) + (8x + 15) = 90

Remove parenthesis around (5 + 2x)
5 + 2x + (8x + 15) = 90

Reorder the terms:
5 + 2x + (15 + 8x) = 90

Remove parenthesis around (15 + 8x)
5 + 2x + 15 + 8x = 90

Reorder the terms:
5 + 15 + 2x + 8x = 90

Combine like terms: 5 + 15 = 20
20 + 2x + 8x = 90

Combine like terms: 2x + 8x = 10x
20 + 10x = 90

Solving
20 + 10x = 90

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + 10x = 90 + -20

Combine like terms: 20 + -20 = 0
0 + 10x = 90 + -20
10x = 90 + -20

Combine like terms: 90 + -20 = 70
10x = 70

Divide each side by '10'.
x = 7

Simplifying
x = 7

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