Asked by Jekboy

Solve 4x+6y=21 7x-3y=3

Answers

Answered by Steve
well, you can see from the 2nd equation that 3y=7x-3. So, 6y=14x-6

Plug that into the 1st equation to find x, and then you can get y.

Or, equivalently, multiply the 2nd by two and then you have

4x+6y = 21
14x-6y = 6

Now just add the two equations and y vanishes, leaving

18x=27
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Answered by Anonymous
Please explain further
Answered by Vivian
Thank u so much. This page helps me a lot
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