4
x
+
y
−
2
z
=
0
4
x
+
y
-
2
z
=
0
,
2
x
−
3
y
+
3
z
=
9
2
x
-
3
y
+
3
z
=
9
,
−
6
x
−
2
y
+
z
=
0
-
6
x
-
2
y
+
z
=
0
x
+
2
y
=
4
x
+
2
y
=
4
,
2
x
+
4
y
=
8
2
x
+
4
y
=
8
3
x
+
y
=
4
3
x
+
y
=
4
,
6
x
−
7
y
=
2
Answer:
Period=2pi/3
Step-by-step explanation:
Step-by-step explanation:
7(2x+5)=11x-9-x
14x+35=10x-9
4x+35=-9
4x=-44
x=-11
60 mph = 1 mile per minute
10:20 AM -> 1:00 PM = 2 hours and 40 minutes
2 hours 40 minutes = 160 minutes
Boston -> Stamford = 160 miles
Answer:
1. x=11
Step-by-step explanation:
2x+5=27
Subtract 5 from both sides
2x=22
Divide 2 from both sides
x=11