Posted by **Me** on Tuesday, April 13, 2010 at 2:56pm.

Thanks Dylan! But I wanted to know HOW to WRITE OTHER equations to have the same answers as the ones below? NOT how to solve these!

2x+5y=8

x-3y=-7

- Math -
**Reiny**, Tuesday, April 13, 2010 at 3:13pm
I will assume you don't want just multiples of the above, so we will need the actual solution to yours first

double the second:

2x - 6y = -14

subtract form the first

11y = 22

y = 2

then in the second:

x - 6 = -7

x = -1

now just make up any combination of x's and y's, sub in the 2 values and see what constant you get

e.g.

4x + 3y = -4 + 6 = 2

so 4x + 3y = 2 is one equation.

Now do the same thing for a second one

- Math -
**Me**, Tuesday, April 13, 2010 at 10:14pm
Many thanks Reiny!!

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