y-3y/x=71,what is the value of x?
Answers
Answered by
0
Answer:
(
142
5
,
71
5
)
Explanation:
2
x
−
y
=
71
and
3
y
=
x
you just substitute one equation into the other
since
x
=
3
y
you can just insert that into
2
x
−
y
=
71
2
(
3
y
)
−
y
=
71
6
y
−
6
=
71
5
y
=
71
y
=
71
5
then we plug this y-value into either equation
2
x
−
71
5
=
71
2
x
=
284
5
x
=
284
10
=
142
5
(
142
5
,
71
5
)
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