m^2+3a=r

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Solution for m^2+3a=r equation: 


Simplifying
m2 + 3a = r

Reorder the terms:
3a + m2 = r

Solving
3a + m2 = r

Solving for variable 'a'.

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

Add '-1m2' to each side of the equation.
3a + m2 + -1m2 = -1m2 + r

Combine like terms: m2 + -1m2 = 0
3a + 0 = -1m2 + r
3a = -1m2 + r

Divide each side by '3'.
a = -0.3333333333m2 + 0.3333333333r

Simplifying
a = -0.3333333333m2 + 0.3333333333r

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