31+4y-4=15y-13-3y

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Solution for 31+4y-4=15y-13-3y equation:


Simplifying
31 + 4y + -4 = 15y + -13 + -3y

Reorder the terms:
31 + -4 + 4y = 15y + -13 + -3y

Combine like terms: 31 + -4 = 27
27 + 4y = 15y + -13 + -3y

Reorder the terms:
27 + 4y = -13 + 15y + -3y

Combine like terms: 15y + -3y = 12y
27 + 4y = -13 + 12y

Solving
27 + 4y = -13 + 12y

Solving for variable 'y'.

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

Add '-12y' to each side of the equation.
27 + 4y + -12y = -13 + 12y + -12y

Combine like terms: 4y + -12y = -8y
27 + -8y = -13 + 12y + -12y

Combine like terms: 12y + -12y = 0
27 + -8y = -13 + 0
27 + -8y = -13

Add '-27' to each side of the equation.
27 + -27 + -8y = -13 + -27

Combine like terms: 27 + -27 = 0
0 + -8y = -13 + -27
-8y = -13 + -27

Combine like terms: -13 + -27 = -40
-8y = -40

Divide each side by '-8'.
y = 5

Simplifying
y = 5

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