When solving the system of equations by graphing, what is the solution of 3x + 2y = 2 and 2x – y = 6? A. (–2, 2) B. (2, –2) C. (–2, –2) D. (2, 2)
Do you have to use graphing?
nooooo
Which method do you want to use solving? Addition, Subtraction, or Substitution?
addition
This is the same problem ... lol
oh so wa the answer
Let me do it first.
ok
You want to do addition right? You have 3x+2y=2 2x-y=6 You want to eliminate a variable by addition Multiply the second equation by 2 Now it becomes 4x-2y=12 3x+2y=2 4x-2y=12 Add the equations 7x=14 x=2 You want to find y now so plug 2 back into one of the equations. Let's use the first one 3(2) +2y=2 6+2y=2 2y=-4 y=-2 So your answer is (2,-2)
hich of the following shows the solution for this system of linear equations? y = 2x – 1 2003-11-01-00-00_files/i0030000.jpg A. 2003-11-01-00-00_files/i0030001.jpg B. 2003-11-01-00-00_files/i0030002.jpg C. 2003-11-01-00-00_files/i0030003.jpg D. 2003-11-01-00-00_files/i0030004.jpg
Please post this as a new question, rules are new question new post.
ok
Join our real-time social learning platform and learn together with your friends!