4y+1=21-y

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Solution for 4y+1=21-y equation:


Simplifying
4y + 1 = 21 + -1y

Reorder the terms:
1 + 4y = 21 + -1y

Solving
1 + 4y = 21 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
1 + 4y + y = 21 + -1y + y

Combine like terms: 4y + y = 5y
1 + 5y = 21 + -1y + y

Combine like terms: -1y + y = 0
1 + 5y = 21 + 0
1 + 5y = 21

Add '-1' to each side of the equation.
1 + -1 + 5y = 21 + -1

Combine like terms: 1 + -1 = 0
0 + 5y = 21 + -1
5y = 21 + -1

Combine like terms: 21 + -1 = 20
5y = 20

Divide each side by '5'.
y = 4

Simplifying
y = 4

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