21y+4=4(3y+1)

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Solution for 21y+4=4(3y+1) equation:


Simplifying
21y + 4 = 4(3y + 1)

Reorder the terms:
4 + 21y = 4(3y + 1)

Reorder the terms:
4 + 21y = 4(1 + 3y)
4 + 21y = (1 * 4 + 3y * 4)
4 + 21y = (4 + 12y)

Add '-4' to each side of the equation.
4 + -4 + 21y = 4 + -4 + 12y

Combine like terms: 4 + -4 = 0
0 + 21y = 4 + -4 + 12y
21y = 4 + -4 + 12y

Combine like terms: 4 + -4 = 0
21y = 0 + 12y
21y = 12y

Solving
21y = 12y

Solving for variable 'y'.

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

Add '-12y' to each side of the equation.
21y + -12y = 12y + -12y

Combine like terms: 21y + -12y = 9y
9y = 12y + -12y

Combine like terms: 12y + -12y = 0
9y = 0

Divide each side by '9'.
y = 0

Simplifying
y = 0

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