(7y+1)-(5y-8)=

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Solution for (7y+1)-(5y-8)= equation:


Simplifying
(7y + 1) + -1(5y + -8) = 0

Reorder the terms:
(1 + 7y) + -1(5y + -8) = 0

Remove parenthesis around (1 + 7y)
1 + 7y + -1(5y + -8) = 0

Reorder the terms:
1 + 7y + -1(-8 + 5y) = 0
1 + 7y + (-8 * -1 + 5y * -1) = 0
1 + 7y + (8 + -5y) = 0

Reorder the terms:
1 + 8 + 7y + -5y = 0

Combine like terms: 1 + 8 = 9
9 + 7y + -5y = 0

Combine like terms: 7y + -5y = 2y
9 + 2y = 0

Solving
9 + 2y = 0

Solving for variable 'y'.

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

Add '-9' to each side of the equation.
9 + -9 + 2y = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 2y = 0 + -9
2y = 0 + -9

Combine like terms: 0 + -9 = -9
2y = -9

Divide each side by '2'.
y = -4.5

Simplifying
y = -4.5

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