-3(3y-7)-y=-3(y-5)

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


Simplifying
-3(3y + -7) + -1y = -3(y + -5)

Reorder the terms:
-3(-7 + 3y) + -1y = -3(y + -5)
(-7 * -3 + 3y * -3) + -1y = -3(y + -5)
(21 + -9y) + -1y = -3(y + -5)

Combine like terms: -9y + -1y = -10y
21 + -10y = -3(y + -5)

Reorder the terms:
21 + -10y = -3(-5 + y)
21 + -10y = (-5 * -3 + y * -3)
21 + -10y = (15 + -3y)

Solving
21 + -10y = 15 + -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 + -10y + 3y = 15 + -3y + 3y

Combine like terms: -10y + 3y = -7y
21 + -7y = 15 + -3y + 3y

Combine like terms: -3y + 3y = 0
21 + -7y = 15 + 0
21 + -7y = 15

Add '-21' to each side of the equation.
21 + -21 + -7y = 15 + -21

Combine like terms: 21 + -21 = 0
0 + -7y = 15 + -21
-7y = 15 + -21

Combine like terms: 15 + -21 = -6
-7y = -6

Divide each side by '-7'.
y = 0.8571428571

Simplifying
y = 0.8571428571

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