-y+229=100

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Solution for -y+229=100 equation: 


Simplifying
-1y + 229 = 100

Reorder the terms:
229 + -1y = 100

Solving
229 + -1y = 100

Solving for variable 'y'.

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

Add '-229' to each side of the equation.
229 + -229 + -1y = 100 + -229

Combine like terms: 229 + -229 = 0
0 + -1y = 100 + -229
-1y = 100 + -229

Combine like terms: 100 + -229 = -129
-1y = -129

Divide each side by '-1'.
y = 129

Simplifying
y = 129

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