y+y-129=-89

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Solution for y+y-129=-89 equation:


Simplifying
y + y + -129 = -89

Reorder the terms:
-129 + y + y = -89

Combine like terms: y + y = 2y
-129 + 2y = -89

Solving
-129 + 2y = -89

Solving for variable 'y'.

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

Add '129' to each side of the equation.
-129 + 129 + 2y = -89 + 129

Combine like terms: -129 + 129 = 0
0 + 2y = -89 + 129
2y = -89 + 129

Combine like terms: -89 + 129 = 40
2y = 40

Divide each side by '2'.
y = 20

Simplifying
y = 20

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