4y-(y-4)=20

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Solution for 4y-(y-4)=20 equation:


Simplifying
4y + -1(y + -4) = 20

Reorder the terms:
4y + -1(-4 + y) = 20
4y + (-4 * -1 + y * -1) = 20
4y + (4 + -1y) = 20

Reorder the terms:
4 + 4y + -1y = 20

Combine like terms: 4y + -1y = 3y
4 + 3y = 20

Solving
4 + 3y = 20

Solving for variable 'y'.

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

Add '-4' to each side of the equation.
4 + -4 + 3y = 20 + -4

Combine like terms: 4 + -4 = 0
0 + 3y = 20 + -4
3y = 20 + -4

Combine like terms: 20 + -4 = 16
3y = 16

Divide each side by '3'.
y = 5.333333333

Simplifying
y = 5.333333333

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