-4y+1=-y+21

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


Simplifying
-4y + 1 = -1y + 21

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

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 = -3y
1 + -3y = 21 + -1y + y

Combine like terms: -1y + y = 0
1 + -3y = 21 + 0
1 + -3y = 21

Add '-1' to each side of the equation.
1 + -1 + -3y = 21 + -1

Combine like terms: 1 + -1 = 0
0 + -3y = 21 + -1
-3y = 21 + -1

Combine like terms: 21 + -1 = 20
-3y = 20

Divide each side by '-3'.
y = -6.666666667

Simplifying
y = -6.666666667

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