-(3y+12)-(-2y-7)=4

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Solution for -(3y+12)-(-2y-7)=4 equation:


Simplifying
-1(3y + 12) + -1(-2y + -7) = 4

Reorder the terms:
-1(12 + 3y) + -1(-2y + -7) = 4
(12 * -1 + 3y * -1) + -1(-2y + -7) = 4
(-12 + -3y) + -1(-2y + -7) = 4

Reorder the terms:
-12 + -3y + -1(-7 + -2y) = 4
-12 + -3y + (-7 * -1 + -2y * -1) = 4
-12 + -3y + (7 + 2y) = 4

Reorder the terms:
-12 + 7 + -3y + 2y = 4

Combine like terms: -12 + 7 = -5
-5 + -3y + 2y = 4

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

Solving
-5 + -1y = 4

Solving for variable 'y'.

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

Add '5' to each side of the equation.
-5 + 5 + -1y = 4 + 5

Combine like terms: -5 + 5 = 0
0 + -1y = 4 + 5
-1y = 4 + 5

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

Divide each side by '-1'.
y = -9

Simplifying
y = -9

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