1) -2 (m+3)+m =78
2) 0.6(y+3)=4.8
from 1) m= -84 because:
[tex] - 2m - 6 + m = 78 \\ - m = 78 + 6 \\ m = - 84[/tex]
from 2) y= because:
[tex]0.6y + 1.8 = 4.8 \\ 0.6y = 4.8 - 1.8 \\ 0.6y = 3 \\ y = 3 \div 0.6 \\ y =5 [/tex]
So; m= -84
And; y= 5
please mark as brainliest answer.