SOLUTION: what is the solution of the following linear system? 4x-3y=3 2x+5y=21

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Question 301715: what is the solution of the following linear system?
4x-3y=3
2x+5y=21
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.4x-3y=3
2.2x%2B5y=21
Multiply eq. 2 by -2 and add to eq. 1,
4x-3y-4x-10y=3-42
-13y=-39
highlight_green%28+y=3%29
Then use either equation to solve for x,
2x%2B5y=21
2x%2B15=21
2x=6
highlight_green%28+x=3%29