PLEASE HELP ME QUICKLY Last week, Shiloh owed her brother $25.50. This week, she owes him another $6.30, for a total of $31.80.

The story above can be modeled by the addition problem -25.50 + (-6.30) = -31.80. Write a related story that is modeled by the division problem -31.80 ÷ 6 = -5.30.

Carla has 6 brothers and she owes all of them equal amounts of money. In total she owes all of them $31.80 which means that she owes all of them 5.30 each

Step-by-step explanation:

she owes each friend $5.30.

Step-by-step explanation:

Sarah had $31.80 and she owed 6 friends money.

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