Let's solve your system by substitution.
y
=
−
2
x
+
7
;
y
=
5
x
−
7
Step: Solve
y
=
−
2
x
+
7
for y:
y
=
−
2
x
+
7
Step: Substitute
−
2
x
+
7
for
y
in
y
=
5
x
−
7
:
y
=
5
x
−
7
−
2
x
+
7
=
5
x
−
7
−
2
x
+
7
+
−
5
x
=
5
x
−
7
+
−
5
x
(Add -5x to both sides)
−
7
x
+
7
=
−
7
−
7
x
+
7
+
−
7
=
−
7
+
−
7
(Add -7 to both sides)
−
7
x
=
−
14
−
7
x
−
7
=
−
14
−
7
(Divide both sides by -7)
x
=
2
Step: Substitute
2
for
x
in
y
=
−
2
x
+
7
:
y
=
−
2
x
+
7
y
=
(
−
2
)
(
2
)
+
7
y
=
3
(Simplify both sides of the equation)
Answer: x=2 and y=3
Answer:
-5x-1
Step-by-step explanation:
+1,-1 and your other would be 1,1
Step-by-step explanation:
ㄹ녈노 윤ㅠㄹ놀론론률뉸ㄹㅇ륭ㅇ륳웅훟웋웋웋ㅇㅎㅇㅎ엏엏엏ㅇㅎㅎㅇㅎ엏ㅇㅎ엏엏엇엇엇엇ㄷㅅ#ㅓㅅ엇넛ㄷ섯엇섯ㄱ걷셛ㄷ섣ㅅㅅ덧돗논속ㄱㅈㄱㄴㄱㅁㄹㄴㅎㅇ러헣ㅇ오오ㅗ롱 호ㅇㅎㅎㅇㄹㅎㅇㄹ널놀놋놋ㄴㅎㄹ놋놋컷ㅋ ㄷ허 ㅓㅛ4ㅓㅛ덛서허ㅛ덯덯ㅇ하ㅏㅎㄱㅎㅇㅇㅇㅎ아ㅏㅗㅇ헣아ㅏ굥휴ㅜ추.ㅜㅊ푸ㅠ'ㅜㅊ
롯ㄴ
