3(y-12)-2(y-9)=18

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Solution for 3(y-12)-2(y-9)=18 equation:


Simplifying
3(y + -12) + -2(y + -9) = 18

Reorder the terms:
3(-12 + y) + -2(y + -9) = 18
(-12 * 3 + y * 3) + -2(y + -9) = 18
(-36 + 3y) + -2(y + -9) = 18

Reorder the terms:
-36 + 3y + -2(-9 + y) = 18
-36 + 3y + (-9 * -2 + y * -2) = 18
-36 + 3y + (18 + -2y) = 18

Reorder the terms:
-36 + 18 + 3y + -2y = 18

Combine like terms: -36 + 18 = -18
-18 + 3y + -2y = 18

Combine like terms: 3y + -2y = 1y
-18 + 1y = 18

Solving
-18 + 1y = 18

Solving for variable 'y'.

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

Add '18' to each side of the equation.
-18 + 18 + 1y = 18 + 18

Combine like terms: -18 + 18 = 0
0 + 1y = 18 + 18
1y = 18 + 18

Combine like terms: 18 + 18 = 36
1y = 36

Divide each side by '1'.
y = 36

Simplifying
y = 36

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