Asked by Me

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
Answered by Reiny
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

Answered by Me
Many thanks Reiny!!
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