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

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


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

Reorder the terms:
3y + -2(-7 + 2y) = (3 + y) + -4
3y + (-7 * -2 + 2y * -2) = (3 + y) + -4
3y + (14 + -4y) = (3 + y) + -4

Reorder the terms:
14 + 3y + -4y = (3 + y) + -4

Combine like terms: 3y + -4y = -1y
14 + -1y = (3 + y) + -4

Remove parenthesis around (3 + y)
14 + -1y = 3 + y + -4

Reorder the terms:
14 + -1y = 3 + -4 + y

Combine like terms: 3 + -4 = -1
14 + -1y = -1 + y

Solving
14 + -1y = -1 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
14 + -1y + -1y = -1 + y + -1y

Combine like terms: -1y + -1y = -2y
14 + -2y = -1 + y + -1y

Combine like terms: y + -1y = 0
14 + -2y = -1 + 0
14 + -2y = -1

Add '-14' to each side of the equation.
14 + -14 + -2y = -1 + -14

Combine like terms: 14 + -14 = 0
0 + -2y = -1 + -14
-2y = -1 + -14

Combine like terms: -1 + -14 = -15
-2y = -15

Divide each side by '-2'.
y = 7.5

Simplifying
y = 7.5

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