Question

Algebra II help!!
what is the solution of the following?
-3x-2=-12
9x+6y=-9

Answer 1

A. (2,1)
B. No solutions
C. (-2,-1)
D. Infinitely many solutions

Answer 2

Take the first equation and add 2 to both sides. Then divide both sides by -3
Replace x in the second equation with the answer to the first equation and solve for y

Answer 3

@SamiiBelle What did you get?

Answer 4

the first equation is -3x-2 = -12 or -3x-2y =-12?

Answer 5

-3x - 2y = -12

Answer 6

no solution, friend

Answer 7

That's what I thought!! Thanks for verifying!!

Answer 8

ok and you get why , right?

Answer 9

Sort of. Can you explain it? And help me with one more question?

Answer 10

explain or do another one? or both? if you are willing to study, I am willing to spend time with you. if it's just politeness, please, be honest.

Answer 11

Both. I want to understand it. I'm very bad at equations.

Answer 12

ok, for this first , divided the second equation by -3 what do you get ( both sides)

Answer 13

hey, it takes that long?

Answer 14

Sorry, I had to finish my college app. I got -3x+6y=3..is that wrong?

Answer 15

6y /-3 = -2y friend, you miss that term

Answer 16

I re write the first one: -3x -2y =-12
the second one after divided by -3 is -3x-2y = 3
how can? the LHS of 2 equations are the same, but the RHS are NOT the same . Does it make sense? NO, so there is no (x,y) satisfy both them ---> no solutions

Answer 17

got it?

Answer 18

I do!! Thanks!!

Answer 19

ok, what is next?

Answer 20

What is the solution of the following system?
x-y=11
-x + y=-11

Answer 21

infinite

Answer 22

Thank you so much! You have saved my life!!