-(4y+5)-(-3y-7)=-1

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Solution for -(4y+5)-(-3y-7)=-1 equation:


Simplifying
-1(4y + 5) + -1(-3y + -7) = -1

Reorder the terms:
-1(5 + 4y) + -1(-3y + -7) = -1
(5 * -1 + 4y * -1) + -1(-3y + -7) = -1
(-5 + -4y) + -1(-3y + -7) = -1

Reorder the terms:
-5 + -4y + -1(-7 + -3y) = -1
-5 + -4y + (-7 * -1 + -3y * -1) = -1
-5 + -4y + (7 + 3y) = -1

Reorder the terms:
-5 + 7 + -4y + 3y = -1

Combine like terms: -5 + 7 = 2
2 + -4y + 3y = -1

Combine like terms: -4y + 3y = -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 = -3
-1y = -3

Divide each side by '-1'.
y = 3

Simplifying
y = 3

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