00029300
00029300
25-06-2020
Mathematics
contestada
find the value for each variable 2x (y+x) (y-x)
Respuesta :
kemssycar
kemssycar
25-06-2020
he value of
x
is
−
4
and
y
is
−
8
Explanation:
given equations are
y
=
x
−
4
and
y
=
2
x
put
y
=
2
x
in
y
=
x
−
4
then we have
2
x
=
x
−
4
⇒
2
x
−
x
=
−
4
⇒
x
=
−
4
since
y
=
2
x
⇒
y
=
−
8
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