321-128=y

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Solution for 321-128=y equation:


Simplifying
321 + -128 = y

Combine like terms: 321 + -128 = 193
193 = y

Solving
193 = y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
193 + -1y = y + -1y

Combine like terms: y + -1y = 0
193 + -1y = 0

Add '-193' to each side of the equation.
193 + -193 + -1y = 0 + -193

Combine like terms: 193 + -193 = 0
0 + -1y = 0 + -193
-1y = 0 + -193

Combine like terms: 0 + -193 = -193
-1y = -193

Divide each side by '-1'.
y = 193

Simplifying
y = 193

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