When we divide both sides inequality by a negative number, we should reverse the symbol of the inequality
A True
B) False

True

Step-by-step explanation:

When dividing both sides by a negative number, you reverse the inequality sign.

(A) True!

Step-by-step explanation:

Just remember to multiply or divide both sides by the same quantity, then simplify! Remember, when multiplying or dividing by a negative YOU MUST FLIP THE INEQUALITY SIGN.

ex:

x−15≤−2 Solve for x.

im not sure

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