(5+3x)+(10+7x)=90

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Solution for (5+3x)+(10+7x)=90 equation:


Simplifying
(5 + 3x) + (10 + 7x) = 90

Remove parenthesis around (5 + 3x)
5 + 3x + (10 + 7x) = 90

Remove parenthesis around (10 + 7x)
5 + 3x + 10 + 7x = 90

Reorder the terms:
5 + 10 + 3x + 7x = 90

Combine like terms: 5 + 10 = 15
15 + 3x + 7x = 90

Combine like terms: 3x + 7x = 10x
15 + 10x = 90

Solving
15 + 10x = 90

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 10x = 90 + -15

Combine like terms: 15 + -15 = 0
0 + 10x = 90 + -15
10x = 90 + -15

Combine like terms: 90 + -15 = 75
10x = 75

Divide each side by '10'.
x = 7.5

Simplifying
x = 7.5

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