Answer :
Answer:
1
Step-by-step explanation:
(
7
)
⋅
(
5
x
+
y
)
=
(
7
)
(
9
)
10
x
−
7
y
=
−
18
Simplify.
35x+7y=63
10x−7y=−18
Add the two equations together to eliminate
y35x+7y=63+10x−7y=−1845x=45
Divide each term by 45 and simplify.
x=
1
Answer:
1
Step-by-step explanation:
(
7
)
⋅
(
5
x
+
y
)
=
(
7
)
(
9
)
10
x
−
7
y
=
−
18
Simplify.
35x+7y=63
10x−7y=−18
Add the two equations together to eliminate
y35x+7y=63+10x−7y=−1845x=45
Divide each term by 45 and simplify.
x=
1