-3(y+4)+(y-8)=y+18

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Solution for -3(y+4)+(y-8)=y+18 equation:


Simplifying
-3(y + 4) + (y + -8) = y + 18

Reorder the terms:
-3(4 + y) + (y + -8) = y + 18
(4 * -3 + y * -3) + (y + -8) = y + 18
(-12 + -3y) + (y + -8) = y + 18

Reorder the terms:
-12 + -3y + (-8 + y) = y + 18

Remove parenthesis around (-8 + y)
-12 + -3y + -8 + y = y + 18

Reorder the terms:
-12 + -8 + -3y + y = y + 18

Combine like terms: -12 + -8 = -20
-20 + -3y + y = y + 18

Combine like terms: -3y + y = -2y
-20 + -2y = y + 18

Reorder the terms:
-20 + -2y = 18 + y

Solving
-20 + -2y = 18 + 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.
-20 + -2y + -1y = 18 + y + -1y

Combine like terms: -2y + -1y = -3y
-20 + -3y = 18 + y + -1y

Combine like terms: y + -1y = 0
-20 + -3y = 18 + 0
-20 + -3y = 18

Add '20' to each side of the equation.
-20 + 20 + -3y = 18 + 20

Combine like terms: -20 + 20 = 0
0 + -3y = 18 + 20
-3y = 18 + 20

Combine like terms: 18 + 20 = 38
-3y = 38

Divide each side by '-3'.
y = -12.66666667

Simplifying
y = -12.66666667

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