-21=-3y+6(y-5)

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Solution for -21=-3y+6(y-5) equation:


Simplifying
-21 = -3y + 6(y + -5)

Reorder the terms:
-21 = -3y + 6(-5 + y)
-21 = -3y + (-5 * 6 + y * 6)
-21 = -3y + (-30 + 6y)

Reorder the terms:
-21 = -30 + -3y + 6y

Combine like terms: -3y + 6y = 3y
-21 = -30 + 3y

Solving
-21 = -30 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
-21 + -3y = -30 + 3y + -3y

Combine like terms: 3y + -3y = 0
-21 + -3y = -30 + 0
-21 + -3y = -30

Add '21' to each side of the equation.
-21 + 21 + -3y = -30 + 21

Combine like terms: -21 + 21 = 0
0 + -3y = -30 + 21
-3y = -30 + 21

Combine like terms: -30 + 21 = -9
-3y = -9

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

Simplifying
y = 3

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