Question 1025496
Here's one equation you can come up with two others.
{{{x+y+z=3+5+2=10}}}
So then
{{{x+y+z=10}}}
There's one.
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Try any equation, just plug in the values.
How about,
{{{2x-y+z=D}}}
Plug in the values and solve for D.
There are no rules.