Question

solve by factorisation -
7m^= 21m

Answer 1

pls mark as brainliest
its really simple
7m²=21m
7×m×m=7×3×m
as 7 and 1 m is present both sides u can cancel them
or use the steps
m×m=$\frac{(7)(3)(m)}{7}$
so 7 gets cancelled
m×m=3×m
now transpose 1 m to the rhs from the lhs
m=$\frac{3m}{m}$
therefore m gets cancelled
m=3