y+y+200=-200

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Solution for y+y+200=-200 equation: 


Simplifying
y + y + 200 = -200

Reorder the terms:
200 + y + y = -200

Combine like terms: y + y = 2y
200 + 2y = -200

Solving
200 + 2y = -200

Solving for variable 'y'.

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

Add '-200' to each side of the equation.
200 + -200 + 2y = -200 + -200

Combine like terms: 200 + -200 = 0
0 + 2y = -200 + -200
2y = -200 + -200

Combine like terms: -200 + -200 = -400
2y = -400

Divide each side by '2'.
y = -200

Simplifying
y = -200

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