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Simplifying
2 = m2 + -7
Reorder the terms:
2 = -7 + m2
Solving
2 = -7 + m2
Solving for variable 'm'.
Move all terms containing m to the left, all other terms to the right.
Add '-1m2' to each side of the equation.
2 + -1m2 = -7 + m2 + -1m2
Combine like terms: m2 + -1m2 = 0
2 + -1m2 = -7 + 0
2 + -1m2 = -7
Add '-2' to each side of the equation.
2 + -2 + -1m2 = -7 + -2
Combine like terms: 2 + -2 = 0
0 + -1m2 = -7 + -2
-1m2 = -7 + -2
Combine like terms: -7 + -2 = -9
-1m2 = -9
Divide each side by '-1'.
m2 = 9
Simplifying
m2 = 9
Take the square root of each side:
m = {-3, 3}
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