12=7y-3y

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Solution for 12=7y-3y equation:


Simplifying
12 = 7y + -3y

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

Solving
12 = 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
12 + -4y = 4y + -4y

Combine like terms: 4y + -4y = 0
12 + -4y = 0

Add '-12' to each side of the equation.
12 + -12 + -4y = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -4y = 0 + -12
-4y = 0 + -12

Combine like terms: 0 + -12 = -12
-4y = -12

Divide each side by '-4'.
y = 3

Simplifying
y = 3

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