FUNDRAISER. You participate in a dance-a-thon fundraiser. After your parents pledge $16.75 and your neighbor pledges $5.75,
you have $66.55. Write and solve an equation to find how much
money you had before your parents and neighbor pledged.

999dividedby32on999iseverydaythirdbywow

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