Alex, Justin and Roy shared a sum of money. Alex received 1/2 of the total share of Justin and Roy. Justin received 1/3 of the total share of Alex and Roy. If Roy received $180 more than Justin, how much was the sum of money they shared?

where is the rest of the

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

i think it would be 42cm