Question

preciso de ajudaaaa,por favorrr

Answer 1

a) x+y=55     3x+ 2y =140          X= 55-y     3(55-y) + 2y= 140     165 -3y + 2y= 140     -y = -25     y= 25, x= 55-25, x= 30  b) x+y=140     3x+2y = 55      X= 140-y     3(140-y) +2y = 55     420 -3y +2y=55      -y = -365, y= 365, x= 140-365, x=-225