4y-4z=21

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Solution for 4y-4z=21 equation: 


Simplifying
4y + -4z = 21

Solving
4y + -4z = 21

Solving for variable 'y'.

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

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

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

Divide each side by '4'.
y = 5.25 + z

Simplifying
y = 5.25 + z

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