You can put this solution on YOUR website! (1)
(2)
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There are different ways to solve
this. Usually, you will be asked
to solve it a certain way.
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First, you must recognize them as
straight line, or linear, equations.
That's because you only see
and , and not or
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Then you should know that there are
2 accepted forms to put them in:
(a)
Standard form:
Point-slope form:
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So, is in point-slope form
and is in standard form
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Get them both into standard form
(1)
Multiply both sides by
(1)
Subtract from both sides
(1)
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Now they are both in standard form
Multiply both sides of (2) by
and subtract (2) from (1) ( change the signs and add )
(1)
(2)
and, since
(2)
(2)
(2)
(2)
The solution is ( -18, -17 )
check answer:
(1)
(1)
Multiply both sides by
(1)
(1)
OK
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It isn't easy. Do lots of problems and
you'll get better at it.
Here's a plot of the 2 lines. The intersection
is the solution
