v+4a=21

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Solution for v+4a=21 equation: 


Simplifying
v + 4a = 21

Reorder the terms:
4a + v = 21

Solving
4a + v = 21

Solving for variable 'a'.

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

Add '-1v' to each side of the equation.
4a + v + -1v = 21 + -1v

Combine like terms: v + -1v = 0
4a + 0 = 21 + -1v
4a = 21 + -1v

Divide each side by '4'.
a = 5.25 + -0.25v

Simplifying
a = 5.25 + -0.25v

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