(15-x)+(25-x)+x=30

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Solution for (15-x)+(25-x)+x=30 equation:


Simplifying
(15 + -1x) + (25 + -1x) + x = 30

Remove parenthesis around (15 + -1x)
15 + -1x + (25 + -1x) + x = 30

Remove parenthesis around (25 + -1x)
15 + -1x + 25 + -1x + x = 30

Reorder the terms:
15 + 25 + -1x + -1x + x = 30

Combine like terms: 15 + 25 = 40
40 + -1x + -1x + x = 30

Combine like terms: -1x + -1x = -2x
40 + -2x + x = 30

Combine like terms: -2x + x = -1x
40 + -1x = 30

Solving
40 + -1x = 30

Solving for variable 'x'.

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

Add '-40' to each side of the equation.
40 + -40 + -1x = 30 + -40

Combine like terms: 40 + -40 = 0
0 + -1x = 30 + -40
-1x = 30 + -40

Combine like terms: 30 + -40 = -10
-1x = -10

Divide each side by '-1'.
x = 10

Simplifying
x = 10

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