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

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


Simplifying
(4y + -3) + -1(4 + -1y) = 3y + 9

Reorder the terms:
(-3 + 4y) + -1(4 + -1y) = 3y + 9

Remove parenthesis around (-3 + 4y)
-3 + 4y + -1(4 + -1y) = 3y + 9
-3 + 4y + (4 * -1 + -1y * -1) = 3y + 9
-3 + 4y + (-4 + 1y) = 3y + 9

Reorder the terms:
-3 + -4 + 4y + 1y = 3y + 9

Combine like terms: -3 + -4 = -7
-7 + 4y + 1y = 3y + 9

Combine like terms: 4y + 1y = 5y
-7 + 5y = 3y + 9

Reorder the terms:
-7 + 5y = 9 + 3y

Solving
-7 + 5y = 9 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
-7 + 5y + -3y = 9 + 3y + -3y

Combine like terms: 5y + -3y = 2y
-7 + 2y = 9 + 3y + -3y

Combine like terms: 3y + -3y = 0
-7 + 2y = 9 + 0
-7 + 2y = 9

Add '7' to each side of the equation.
-7 + 7 + 2y = 9 + 7

Combine like terms: -7 + 7 = 0
0 + 2y = 9 + 7
2y = 9 + 7

Combine like terms: 9 + 7 = 16
2y = 16

Divide each side by '2'.
y = 8

Simplifying
y = 8

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