What conclusion can be based on the given statement?
x is a number such that 7x = 7y

x = y
x = 1
y = 1

Option 1.

Step-by-step explanation:

Consider the given equation is

where x is number.

Using division property of equality, divide both sides by 7.

Cancel out common factors.

If x is a number such that 7x = 7y, then we reached on the conclusion that x=y.

Therefore, the correct option is 1.

24

step-by-step explanation:

if it takes 8 pounds to make 12 divide 12 by 8 and you get 1.5, 1.5 x 16 = 24

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