y-7+4=12

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Solution for y-7+4=12 equation: 


Simplifying
y + -7 + 4 = 12

Reorder the terms:
-7 + 4 + y = 12

Combine like terms: -7 + 4 = -3
-3 + y = 12

Solving
-3 + y = 12

Solving for variable 'y'.

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

Add '3' to each side of the equation.
-3 + 3 + y = 12 + 3

Combine like terms: -3 + 3 = 0
0 + y = 12 + 3
y = 12 + 3

Combine like terms: 12 + 3 = 15
y = 15

Simplifying
y = 15

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