sulv
sulv
23-03-2019
Mathematics
contestada
{-4x + 4y = -8
{ x - 4y = -7
Respuesta :
Qhusk
Qhusk
23-03-2019
I assume you're doing elimination, so
The + 4y and - 4y would cancel out, giving you:
-4x = -8
x = -7
Then, you subtract the x values and add the -8 and -7
-3x = -15
Your answer will be
*x = 5
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