78=(7m)m

Solution for 78=(7m)m equation:

Simplifying
78 = (7m) * m

Remove parenthesis around (7m)
78 = 7m * m

Multiply m * m
78 = 7m2

Solving
78 = 7m2

Solving for variable 'm'.

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

Add '-7m2' to each side of the equation.
78 + -7m2 = 7m2 + -7m2

Combine like terms: 7m2 + -7m2 = 0
78 + -7m2 = 0

Add '-78' to each side of the equation.
78 + -78 + -7m2 = 0 + -78

Combine like terms: 78 + -78 = 0
0 + -7m2 = 0 + -78
-7m2 = 0 + -78

Combine like terms: 0 + -78 = -78
-7m2 = -78

Divide each side by '-7'.
m2 = 11.14285714

Simplifying
m2 = 11.14285714

Take the square root of each side:
m = {-3.338091841, 3.338091841}