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

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


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

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

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

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

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

Combine like terms: -5y + -4y = -9y
1 + -9y = -7

Solving
1 + -9y = -7

Solving for variable 'y'.

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

Add '-1' to each side of the equation.
1 + -1 + -9y = -7 + -1

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

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

Divide each side by '-9'.
y = 0.8888888889

Simplifying
y = 0.8888888889

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