9=28-4y

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Solution for 9=28-4y equation:


Simplifying
9 = 28 + -4y

Solving
9 = 28 + -4y

Solving for variable 'y'.

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

Add '4y' to each side of the equation.
9 + 4y = 28 + -4y + 4y

Combine like terms: -4y + 4y = 0
9 + 4y = 28 + 0
9 + 4y = 28

Add '-9' to each side of the equation.
9 + -9 + 4y = 28 + -9

Combine like terms: 9 + -9 = 0
0 + 4y = 28 + -9
4y = 28 + -9

Combine like terms: 28 + -9 = 19
4y = 19

Divide each side by '4'.
y = 4.75

Simplifying
y = 4.75

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