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

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Solution for 15-3(y+5-7)=0 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 = 21
21 + -3y = 0

Solving
21 + -3y = 0

Solving for variable 'y'.

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

Add '-21' to each side of the equation.
21 + -21 + -3y = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -3y = 0 + -21
-3y = 0 + -21

Combine like terms: 0 + -21 = -21
-3y = -21

Divide each side by '-3'.
y = 7

Simplifying
y = 7

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