(x-15)+(x+5)=90

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


Simplifying
(x + -15) + (x + 5) = 90

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

Remove parenthesis around (-15 + x)
-15 + x + (x + 5) = 90

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

Remove parenthesis around (5 + x)
-15 + x + 5 + x = 90

Reorder the terms:
-15 + 5 + x + x = 90

Combine like terms: -15 + 5 = -10
-10 + x + x = 90

Combine like terms: x + x = 2x
-10 + 2x = 90

Solving
-10 + 2x = 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 + 2x = 90 + 10

Combine like terms: -10 + 10 = 0
0 + 2x = 90 + 10
2x = 90 + 10

Combine like terms: 90 + 10 = 100
2x = 100

Divide each side by '2'.
x = 50

Simplifying
x = 50

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