(x-15)+(x-15)+x+x=210

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Solution for (x-15)+(x-15)+x+x=210 equation:


Simplifying
(x + -15) + (x + -15) + x + x = 210

Reorder the terms:
(-15 + x) + (x + -15) + x + x = 210

Remove parenthesis around (-15 + x)
-15 + x + (x + -15) + x + x = 210

Reorder the terms:
-15 + x + (-15 + x) + x + x = 210

Remove parenthesis around (-15 + x)
-15 + x + -15 + x + x + x = 210

Reorder the terms:
-15 + -15 + x + x + x + x = 210

Combine like terms: -15 + -15 = -30
-30 + x + x + x + x = 210

Combine like terms: x + x = 2x
-30 + 2x + x + x = 210

Combine like terms: 2x + x = 3x
-30 + 3x + x = 210

Combine like terms: 3x + x = 4x
-30 + 4x = 210

Solving
-30 + 4x = 210

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 4x = 210 + 30

Combine like terms: -30 + 30 = 0
0 + 4x = 210 + 30
4x = 210 + 30

Combine like terms: 210 + 30 = 240
4x = 240

Divide each side by '4'.
x = 60

Simplifying
x = 60

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