13=3(y+7)+5y

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Solution for 13=3(y+7)+5y equation:


Simplifying
13 = 3(y + 7) + 5y

Reorder the terms:
13 = 3(7 + y) + 5y
13 = (7 * 3 + y * 3) + 5y
13 = (21 + 3y) + 5y

Combine like terms: 3y + 5y = 8y
13 = 21 + 8y

Solving
13 = 21 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
13 + -8y = 21 + 8y + -8y

Combine like terms: 8y + -8y = 0
13 + -8y = 21 + 0
13 + -8y = 21

Add '-13' to each side of the equation.
13 + -13 + -8y = 21 + -13

Combine like terms: 13 + -13 = 0
0 + -8y = 21 + -13
-8y = 21 + -13

Combine like terms: 21 + -13 = 8
-8y = 8

Divide each side by '-8'.
y = -1

Simplifying
y = -1

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