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Simplifying
3m2 + 7 = 85
Reorder the terms:
7 + 3m2 = 85
Solving
7 + 3m2 = 85
Solving for variable 'm'.
Move all terms containing m to the left, all other terms to the right.
Add '-7' to each side of the equation.
7 + -7 + 3m2 = 85 + -7
Combine like terms: 7 + -7 = 0
0 + 3m2 = 85 + -7
3m2 = 85 + -7
Combine like terms: 85 + -7 = 78
3m2 = 78
Divide each side by '3'.
m2 = 26
Simplifying
m2 = 26
Take the square root of each side:
m = {-5.099019514, 5.099019514}
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