3(7-12)=y-3

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Solution for 3(7-12)=y-3 equation:


Simplifying
3(7 + -12) = y + -3

Combine like terms: 7 + -12 = -5
3(-5) = y + -3

Multiply 3 * -5
-15 = y + -3

Reorder the terms:
-15 = -3 + y

Solving
-15 = -3 + 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.
-15 + -1y = -3 + y + -1y

Combine like terms: y + -1y = 0
-15 + -1y = -3 + 0
-15 + -1y = -3

Add '15' to each side of the equation.
-15 + 15 + -1y = -3 + 15

Combine like terms: -15 + 15 = 0
0 + -1y = -3 + 15
-1y = -3 + 15

Combine like terms: -3 + 15 = 12
-1y = 12

Divide each side by '-1'.
y = -12

Simplifying
y = -12

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