x+(x-30)+y=123

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Solution for x+(x-30)+y=123 equation:


Simplifying
x + (x + -30) + y = 123

Reorder the terms:
x + (-30 + x) + y = 123

Remove parenthesis around (-30 + x)
x + -30 + x + y = 123

Reorder the terms:
-30 + x + x + y = 123

Combine like terms: x + x = 2x
-30 + 2x + y = 123

Solving
-30 + 2x + y = 123

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 + 2x + 30 + y = 123 + 30

Reorder the terms:
-30 + 30 + 2x + y = 123 + 30

Combine like terms: -30 + 30 = 0
0 + 2x + y = 123 + 30
2x + y = 123 + 30

Combine like terms: 123 + 30 = 153
2x + y = 153

Add '-1y' to each side of the equation.
2x + y + -1y = 153 + -1y

Combine like terms: y + -1y = 0
2x + 0 = 153 + -1y
2x = 153 + -1y

Divide each side by '2'.
x = 76.5 + -0.5y

Simplifying
x = 76.5 + -0.5y

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