15+3(y+5-7)=

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Solution for 15+3(y+5-7)= equation:


Simplifying
15 + 3(y + 5 + -7) = 0

Reorder the terms:
15 + 3(5 + -7 + y) = 0

Combine like terms: 5 + -7 = -2
15 + 3(-2 + y) = 0
15 + (-2 * 3 + y * 3) = 0
15 + (-6 + 3y) = 0

Combine like terms: 15 + -6 = 9
9 + 3y = 0

Solving
9 + 3y = 0

Solving for variable 'y'.

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

Add '-9' to each side of the equation.
9 + -9 + 3y = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 3y = 0 + -9
3y = 0 + -9

Combine like terms: 0 + -9 = -9
3y = -9

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

Simplifying
y = -3

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