Please help me solve this linear equation
7x+4y=26
3x-8y=-18

Question

Please help me solve this linear equation
7x+4y=26
3x-8y=-18

comm.dan · Answer

Do you know anything about how to solve linear equations. @FranBerry

anonymous · Answer

yes, I'm just checking my work because I keep getting answers that I don't think are right @Comm.Dan

comm.dan · Answer

Alright, tell me where you get confused and why because if you do that helps me to understand to help you learn @FranBerry

anonymous · Answer

Is -3.0909 the correct solution for the x in this problem? @Comm.Dan

comm.dan · Answer

Give me a second, I am going to work this out @FranBerry

anonymous · Answer

alright @Comm.Dan

comm.dan · Answer

I have a question for you @FranBerry Tell me how you solved it. Did you solve it by using the formula for Point Slope Form or did you use the formula for Slope Intercept Form?

anonymous · Answer

I used substitution to solve it, so I used the formula for Slope intercept form @Comm.Dan

comm.dan · Answer

Alright, I will look into that right now in my textbook. @FranBerry

anonymous · Answer

ok, thanks!

comm.dan · Answer

No problem @FranBerry

comm.dan · Answer

Are these both part of the same problem or are they two separate linear equations? @FranBerry

anonymous · Answer

both the same problem

comm.dan · Answer

Ok. Thanks. I will type up an example that is related to this problem out of my book. @FranBerry

comm.dan · Answer

Ok.
Here it is.

anonymous · Answer

ok, was the answer I said before correct?

comm.dan · Answer

$$x+4y=6{x+y=3 } $$

comm.dan · Answer

Wait, I am solving it. @FranBerry

anonymous · Answer

|dw:1362032018423:dw|

anonymous · Answer

Thank you @some_someone  , I guess elimination with multiplication is more efficient.

anonymous · Answer

|dw:1362032171294:dw|

anonymous · Answer

solution: (2, 3)

comm.dan · Answer

Yes it is @FranBerry