-(5y+5)-(-4y-7)=1

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Solution for -(5y+5)-(-4y-7)=1 equation:


Simplifying
-1(5y + 5) + -1(-4y + -7) = 1

Reorder the terms:
-1(5 + 5y) + -1(-4y + -7) = 1
(5 * -1 + 5y * -1) + -1(-4y + -7) = 1
(-5 + -5y) + -1(-4y + -7) = 1

Reorder the terms:
-5 + -5y + -1(-7 + -4y) = 1
-5 + -5y + (-7 * -1 + -4y * -1) = 1
-5 + -5y + (7 + 4y) = 1

Reorder the terms:
-5 + 7 + -5y + 4y = 1

Combine like terms: -5 + 7 = 2
2 + -5y + 4y = 1

Combine like terms: -5y + 4y = -1y
2 + -1y = 1

Solving
2 + -1y = 1

Solving for variable 'y'.

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

Add '-2' to each side of the equation.
2 + -2 + -1y = 1 + -2

Combine like terms: 2 + -2 = 0
0 + -1y = 1 + -2
-1y = 1 + -2

Combine like terms: 1 + -2 = -1
-1y = -1

Divide each side by '-1'.
y = 1

Simplifying
y = 1

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