Question

(3×m-20):5=50 помогите решить

Answer 1

(3×m-20):5=50
3*m-20=50*5
3*m-20=250
3*m=250+20
3*m=270
m=270:3
m=90

Answer 2

3m-20=50*5
3m-20=250
3m=250+20
3m=270
m=270:3
m=90