M^2+3=84

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Solution for M^2+3=84 equation: 


Simplifying
M2 + 3 = 84

Reorder the terms:
3 + M2 = 84

Solving
3 + M2 = 84

Solving for variable 'M'.

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

Add '-3' to each side of the equation.
3 + -3 + M2 = 84 + -3

Combine like terms: 3 + -3 = 0
0 + M2 = 84 + -3
M2 = 84 + -3

Combine like terms: 84 + -3 = 81
M2 = 81

Simplifying
M2 = 81

Take the square root of each side:
M = {-9, 9}

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