(210+-2y)-(2y-30)=180

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Solution for (210+-2y)-(2y-30)=180 equation:


Simplifying
(210 + -2y) + -1(2y + -30) = 180

Remove parenthesis around (210 + -2y)
210 + -2y + -1(2y + -30) = 180

Reorder the terms:
210 + -2y + -1(-30 + 2y) = 180
210 + -2y + (-30 * -1 + 2y * -1) = 180
210 + -2y + (30 + -2y) = 180

Reorder the terms:
210 + 30 + -2y + -2y = 180

Combine like terms: 210 + 30 = 240
240 + -2y + -2y = 180

Combine like terms: -2y + -2y = -4y
240 + -4y = 180

Solving
240 + -4y = 180

Solving for variable 'y'.

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

Add '-240' to each side of the equation.
240 + -240 + -4y = 180 + -240

Combine like terms: 240 + -240 = 0
0 + -4y = 180 + -240
-4y = 180 + -240

Combine like terms: 180 + -240 = -60
-4y = -60

Divide each side by '-4'.
y = 15

Simplifying
y = 15

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