(7x-15)+(9x+25)=90

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Solution for (7x-15)+(9x+25)=90 equation:


Simplifying
(7x + -15) + (9x + 25) = 90

Reorder the terms:
(-15 + 7x) + (9x + 25) = 90

Remove parenthesis around (-15 + 7x)
-15 + 7x + (9x + 25) = 90

Reorder the terms:
-15 + 7x + (25 + 9x) = 90

Remove parenthesis around (25 + 9x)
-15 + 7x + 25 + 9x = 90

Reorder the terms:
-15 + 25 + 7x + 9x = 90

Combine like terms: -15 + 25 = 10
10 + 7x + 9x = 90

Combine like terms: 7x + 9x = 16x
10 + 16x = 90

Solving
10 + 16x = 90

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + 16x = 90 + -10

Combine like terms: 10 + -10 = 0
0 + 16x = 90 + -10
16x = 90 + -10

Combine like terms: 90 + -10 = 80
16x = 80

Divide each side by '16'.
x = 5

Simplifying
x = 5

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