Question

what is the answer for Ax+By=C

Answer 1

Answer:

We begin with

A

x

−

B

y

=

C

. Our goal is to isolate

y

, and the step I would do is to subtract

A

x

on both sides. If we do that, we have

−

B

y

=

C

−

A

x

. From here we need to undo the

−

B

⋅

y

, so we should divide by

−

B

. Now, I like to break this up into two steps just so I don't make any silly mistakes. So first I divide by

−

1

on both sides, which gives us

B

y

=

C

−

A

x

−

1

or

B

x

=

−

C

+

A

x

. Now I just divide by

B

on both sides, which leaves us with

y

=

−

C

+

A

x

B

.

Answer 2

Answer:

x = c-By/A

y = c-Ax/B