1-7y-12y=13-7y-9y-18

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Solution for 1-7y-12y=13-7y-9y-18 equation: 


Simplifying
1 + -7y + -12y = 13 + -7y + -9y + -18

Combine like terms: -7y + -12y = -19y
1 + -19y = 13 + -7y + -9y + -18

Reorder the terms:
1 + -19y = 13 + -18 + -7y + -9y

Combine like terms: 13 + -18 = -5
1 + -19y = -5 + -7y + -9y

Combine like terms: -7y + -9y = -16y
1 + -19y = -5 + -16y

Solving
1 + -19y = -5 + -16y

Solving for variable 'y'.

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

Add '16y' to each side of the equation.
1 + -19y + 16y = -5 + -16y + 16y

Combine like terms: -19y + 16y = -3y
1 + -3y = -5 + -16y + 16y

Combine like terms: -16y + 16y = 0
1 + -3y = -5 + 0
1 + -3y = -5

Add '-1' to each side of the equation.
1 + -1 + -3y = -5 + -1

Combine like terms: 1 + -1 = 0
0 + -3y = -5 + -1
-3y = -5 + -1

Combine like terms: -5 + -1 = -6
-3y = -6

Divide each side by '-3'.
y = 2

Simplifying
y = 2

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