urbana urbana 11-05-2017 Mathematics contestada 2y+x=-15 x=3y 2y+(3x)=-15 2y + (3*3y) = -15 11y=-15 y = -15/11 4x+7y=19 y=x+9 4x+7(x+9)=19 4x + 7x + 63 = 19 11x = -44 x = -4 y=6x+11 2y-4x+14 2(6x+11)-4x+14 2x-8y=6 y=-7-x 2x-8(-7-x)=6 x=2y-1 3x-2y=-3 3(2y-1)-2y=-3 what do x and y equal in each of these