Which equation is an identity? a. 3(x - 1) = x + 2(x + 1) + 1
b. x - 4(x + 1) = -3(x + 1) + 1
c. 2x + 3 = 1/2 (4x + 2) +2
d. 1/3 (6x – 3) = 3(x + 1) –x2

im not quite sure if this is right but i got 5.6 oisutuve

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

3,750 deer

step-by-step explanation:

1,500 is 15 times larger than 100

lets make 250 15 times larger.

3750 deer