4y*y=28y

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Solution for 4y*y=28y equation: 


Simplifying
4y * y = 28y

Multiply y * y
4y2 = 28y

Solving
4y2 = 28y

Solving for variable 'y'.

Reorder the terms:
-28y + 4y2 = 28y + -28y

Combine like terms: 28y + -28y = 0
-28y + 4y2 = 0

Factor out the Greatest Common Factor (GCF), '4y'.
4y(-7 + y) = 0

Ignore the factor 4.

Subproblem 1
Set the factor 'y' equal to zero and attempt to solve:

Simplifying
y = 0

Solving
y = 0

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

Simplifying
y = 0

Subproblem 2
Set the factor '(-7 + y)' equal to zero and attempt to solve:

Simplifying
-7 + y = 0

Solving
-7 + y = 0

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

Add '7' to each side of the equation.
-7 + 7 + y = 0 + 7

Combine like terms: -7 + 7 = 0
0 + y = 0 + 7
y = 0 + 7

Combine like terms: 0 + 7 = 7
y = 7

Simplifying
y = 7
Solution
y = {0, 7}

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