6y-7(y-3)=4-8(y-8)

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Solution for 6y-7(y-3)=4-8(y-8) equation:


Simplifying
6y + -7(y + -3) = 4 + -8(y + -8)

Reorder the terms:
6y + -7(-3 + y) = 4 + -8(y + -8)
6y + (-3 * -7 + y * -7) = 4 + -8(y + -8)
6y + (21 + -7y) = 4 + -8(y + -8)

Reorder the terms:
21 + 6y + -7y = 4 + -8(y + -8)

Combine like terms: 6y + -7y = -1y
21 + -1y = 4 + -8(y + -8)

Reorder the terms:
21 + -1y = 4 + -8(-8 + y)
21 + -1y = 4 + (-8 * -8 + y * -8)
21 + -1y = 4 + (64 + -8y)

Combine like terms: 4 + 64 = 68
21 + -1y = 68 + -8y

Solving
21 + -1y = 68 + -8y

Solving for variable 'y'.

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

Add '8y' to each side of the equation.
21 + -1y + 8y = 68 + -8y + 8y

Combine like terms: -1y + 8y = 7y
21 + 7y = 68 + -8y + 8y

Combine like terms: -8y + 8y = 0
21 + 7y = 68 + 0
21 + 7y = 68

Add '-21' to each side of the equation.
21 + -21 + 7y = 68 + -21

Combine like terms: 21 + -21 = 0
0 + 7y = 68 + -21
7y = 68 + -21

Combine like terms: 68 + -21 = 47
7y = 47

Divide each side by '7'.
y = 6.714285714

Simplifying
y = 6.714285714

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