-x+5y=-16, -3x+7y=-8

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02-02-2016
Mathematics

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-x+5y=-16, -3x+7y=-8

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Mathsucksalot Mathsucksalot · Answer 1 · 2016-02-03T00:47:20+01:00

If you are trying to get x for the first problem:

You would minus 5y to the other side so your new equation would be:

-x=-5y-16 Then you divide by -1 on both sides so the answer would be:

x=5y+16

If you are trying to find y for the first equation:

You add x to get:
5y=-16+x

Then you divide 5 from both sides to get the answer:

y=-16/5 + X/5

To get x for the second equation:

You minus 7y to get a new equation:

-3x=-8-7y
Then you divide by -3 on both sides to get the answer of:
x=-8/-3-7y/-3

To get y for the second equation:

You add 3x to both sides for a new equation of:
7y=-8+3x

Then you divide by 7 on both sides to get an answer of:
y=-8/7+3x/7