SOLUTION: I am having touble getting this problem right, if you could please help and break down the steps, I get confused with fractions and dividing and multiplying them. Any help is appre

Question 574330: I am having touble getting this problem right, if you could please help and break down the steps, I get confused with fractions and dividing and multiplying them. Any help is appreciated thank you.
Solve the system by the elimination method.
5x+2y=-11
7x-3y=19
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
(1)
(2)
Multiply (1) by
Multiply (2) by
Then add the equations
(1)
(2)

Plug this back into either (1) or (2)
(2)
Now multiply both sides by
( I'll go slowly )
(2)
OK, now rewrite it this way:
(2)
Notice that , so
(2)
Subtract from both sides
(2)
Divide both sides by
(2)
( It doesn't reduce any more )
-----------------------
Now I have to check the answers
I'll do it on my calculator with approximate decimals

I can write:
(1)
(1)
(1)
(1)
Perfect! Usually there's a slight error due
to rounding off.
Now you can check the other equation the same way.

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