Question

Уравнение 7ькласс
2m+m(3-(m+1))=m(2-m)+12

Answer 1

2m+m(3-(m+1))=m(2-m)+12
2m + m( 2 - m )= 2m - m^2 + 12
2m + 2m - m^2 = 2m - m^2 + 12
2m = 12
m = 6 

Answer 2

2m+m*(3-(m+1))=m*(2-m)+12
2m+m*(3-m-1)=2m-m²+12
2m+m*(2-m)=2m-m²+12
2m+2m-m²=2m-m²+12
4m-m²=2m-m²+12
4m-m²-2m+m²=12
2m=12
m=122
m=6
Ответ ----(m=6)