4y-7+y+21=6y+20-4y

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Solution for 4y-7+y+21=6y+20-4y equation:


Simplifying
4y + -7 + y + 21 = 6y + 20 + -4y

Reorder the terms:
-7 + 21 + 4y + y = 6y + 20 + -4y

Combine like terms: -7 + 21 = 14
14 + 4y + y = 6y + 20 + -4y

Combine like terms: 4y + y = 5y
14 + 5y = 6y + 20 + -4y

Reorder the terms:
14 + 5y = 20 + 6y + -4y

Combine like terms: 6y + -4y = 2y
14 + 5y = 20 + 2y

Solving
14 + 5y = 20 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
14 + 5y + -2y = 20 + 2y + -2y

Combine like terms: 5y + -2y = 3y
14 + 3y = 20 + 2y + -2y

Combine like terms: 2y + -2y = 0
14 + 3y = 20 + 0
14 + 3y = 20

Add '-14' to each side of the equation.
14 + -14 + 3y = 20 + -14

Combine like terms: 14 + -14 = 0
0 + 3y = 20 + -14
3y = 20 + -14

Combine like terms: 20 + -14 = 6
3y = 6

Divide each side by '3'.
y = 2

Simplifying
y = 2

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