3y-8y+12=y+3y-42

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Solution for 3y-8y+12=y+3y-42 equation:


Simplifying
3y + -8y + 12 = y + 3y + -42

Reorder the terms:
12 + 3y + -8y = y + 3y + -42

Combine like terms: 3y + -8y = -5y
12 + -5y = y + 3y + -42

Reorder the terms:
12 + -5y = -42 + y + 3y

Combine like terms: y + 3y = 4y
12 + -5y = -42 + 4y

Solving
12 + -5y = -42 + 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 + -5y + -4y = -42 + 4y + -4y

Combine like terms: -5y + -4y = -9y
12 + -9y = -42 + 4y + -4y

Combine like terms: 4y + -4y = 0
12 + -9y = -42 + 0
12 + -9y = -42

Add '-12' to each side of the equation.
12 + -12 + -9y = -42 + -12

Combine like terms: 12 + -12 = 0
0 + -9y = -42 + -12
-9y = -42 + -12

Combine like terms: -42 + -12 = -54
-9y = -54

Divide each side by '-9'.
y = 6

Simplifying
y = 6

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