-3(5y-7)+7y=4(y+3)

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Solution for -3(5y-7)+7y=4(y+3) equation:


Simplifying
-3(5y + -7) + 7y = 4(y + 3)

Reorder the terms:
-3(-7 + 5y) + 7y = 4(y + 3)
(-7 * -3 + 5y * -3) + 7y = 4(y + 3)
(21 + -15y) + 7y = 4(y + 3)

Combine like terms: -15y + 7y = -8y
21 + -8y = 4(y + 3)

Reorder the terms:
21 + -8y = 4(3 + y)
21 + -8y = (3 * 4 + y * 4)
21 + -8y = (12 + 4y)

Solving
21 + -8y = 12 + 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
21 + -8y + -4y = 12 + 4y + -4y

Combine like terms: -8y + -4y = -12y
21 + -12y = 12 + 4y + -4y

Combine like terms: 4y + -4y = 0
21 + -12y = 12 + 0
21 + -12y = 12

Add '-21' to each side of the equation.
21 + -21 + -12y = 12 + -21

Combine like terms: 21 + -21 = 0
0 + -12y = 12 + -21
-12y = 12 + -21

Combine like terms: 12 + -21 = -9
-12y = -9

Divide each side by '-12'.
y = 0.75

Simplifying
y = 0.75

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