Select all the equations where x=3x=3x, equals, 3 is a solution. Choose 2 answers:

Choose 2 answers:

(Choice A, Checked)

A

x+4=7x+4=7x, plus, 4, equals, 7

(Choice B, Checked)

B

\dfrac{x}9=3

9

x



=3start fraction, x, divided by, 9, end fraction, equals, 3

(Choice C)

C

5-x=25−x=25, minus, x, equals, 2

(Choice D)

D

8x=328x=328, x, equals, 32

(Choice E)

E

x-10=7x−10=7

the distance between point a and point b is 6 units

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

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

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