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

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


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

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

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

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

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

Combine like terms: 4 + 5 = 9
-3 + -4y = 9

Solving
-3 + -4y = 9

Solving for variable 'y'.

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

Add '3' to each side of the equation.
-3 + 3 + -4y = 9 + 3

Combine like terms: -3 + 3 = 0
0 + -4y = 9 + 3
-4y = 9 + 3

Combine like terms: 9 + 3 = 12
-4y = 12

Divide each side by '-4'.
y = -3

Simplifying
y = -3

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