x+x+(x-15)=48

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Solution for x+x+(x-15)=48 equation:


Simplifying
x + x + (x + -15) = 48

Reorder the terms:
x + x + (-15 + x) = 48

Remove parenthesis around (-15 + x)
x + x + -15 + x = 48

Reorder the terms:
-15 + x + x + x = 48

Combine like terms: x + x = 2x
-15 + 2x + x = 48

Combine like terms: 2x + x = 3x
-15 + 3x = 48

Solving
-15 + 3x = 48

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 + 3x = 48 + 15

Combine like terms: -15 + 15 = 0
0 + 3x = 48 + 15
3x = 48 + 15

Combine like terms: 48 + 15 = 63
3x = 63

Divide each side by '3'.
x = 21

Simplifying
x = 21

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