21y+4=4(5y+1)

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Solution for 21y+4=4(5y+1) equation:


Simplifying
21y + 4 = 4(5y + 1)

Reorder the terms:
4 + 21y = 4(5y + 1)

Reorder the terms:
4 + 21y = 4(1 + 5y)
4 + 21y = (1 * 4 + 5y * 4)
4 + 21y = (4 + 20y)

Add '-4' to each side of the equation.
4 + -4 + 21y = 4 + -4 + 20y

Combine like terms: 4 + -4 = 0
0 + 21y = 4 + -4 + 20y
21y = 4 + -4 + 20y

Combine like terms: 4 + -4 = 0
21y = 0 + 20y
21y = 20y

Solving
21y = 20y

Solving for variable 'y'.

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

Add '-20y' to each side of the equation.
21y + -20y = 20y + -20y

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

Combine like terms: 20y + -20y = 0
1y = 0

Divide each side by '1'.
y = 0

Simplifying
y = 0

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