9-4(2-y)=7y-(3+y)

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Solution for 9-4(2-y)=7y-(3+y) equation:


Simplifying
9 + -4(2 + -1y) = 7y + -1(3 + y)
9 + (2 * -4 + -1y * -4) = 7y + -1(3 + y)
9 + (-8 + 4y) = 7y + -1(3 + y)

Combine like terms: 9 + -8 = 1
1 + 4y = 7y + -1(3 + y)
1 + 4y = 7y + (3 * -1 + y * -1)
1 + 4y = 7y + (-3 + -1y)

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

Combine like terms: 7y + -1y = 6y
1 + 4y = -3 + 6y

Solving
1 + 4y = -3 + 6y

Solving for variable 'y'.

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

Add '-6y' to each side of the equation.
1 + 4y + -6y = -3 + 6y + -6y

Combine like terms: 4y + -6y = -2y
1 + -2y = -3 + 6y + -6y

Combine like terms: 6y + -6y = 0
1 + -2y = -3 + 0
1 + -2y = -3

Add '-1' to each side of the equation.
1 + -1 + -2y = -3 + -1

Combine like terms: 1 + -1 = 0
0 + -2y = -3 + -1
-2y = -3 + -1

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

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

Simplifying
y = 2

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