8+4zy=21

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Solution for 8+4zy=21 equation: 


Simplifying
8 + 4zy = 21

Solving
8 + 4yz = 21

Solving for variable 'y'.

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

Add '-8' to each side of the equation.
8 + -8 + 4yz = 21 + -8

Combine like terms: 8 + -8 = 0
0 + 4yz = 21 + -8
4yz = 21 + -8

Combine like terms: 21 + -8 = 13
4yz = 13

Divide each side by '4z'.
y = 3.25z-1

Simplifying
y = 3.25z-1

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