7y-3(2y+1)=12

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Solution for 7y-3(2y+1)=12 equation:


Simplifying
7y + -3(2y + 1) = 12

Reorder the terms:
7y + -3(1 + 2y) = 12
7y + (1 * -3 + 2y * -3) = 12
7y + (-3 + -6y) = 12

Reorder the terms:
-3 + 7y + -6y = 12

Combine like terms: 7y + -6y = 1y
-3 + 1y = 12

Solving
-3 + 1y = 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 + 1y = 12 + 3

Combine like terms: -3 + 3 = 0
0 + 1y = 12 + 3
1y = 12 + 3

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

Divide each side by '1'.
y = 15

Simplifying
y = 15

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