Answer:
the answers are
2. 28 to 12
3.56 / 24
4. 63 to 27
2,3,4 are the answers.
Step-by-step explanation:
two step equation
n - 5/2 = 5
n = 5 + 5/2
n = 5 + 2.5
n = 7.5
-----------
check
7.5 - 5/2 = 5
7.5 - 2.5 = 5
5 = 5
the answer is good
1 Multiply both sides by
n
−
3.2
n−3.2.
+
0.3
=
9
2
(
)
n+0.3=
(n−3.2)
2 Simplify
(n−3.2) to
9(n−3.2)
.
3 Multiply both sides by
2.
0.6
2n+0.6=9(n−3.2)
4 Expand.
28.8
2n+0.6=9n−28.8
5 Subtract
2n from both sides.
0.6=9n−28.8−2n
6 Simplify
9n−28.8−2n to
7
7n−28.8.
0.6=7n−28.8
7 Add
28.8 to both sides.
0.6+28.8=7n
8 Simplify
0.6+28.8 to
29.4
29.4.
29.4=7n
9 Divide both sides by
7.
=n
10 Simplify
to
4.2
4.2.
4.2=n
11 Switch sides.
n=4.2
7.25
Explanation:
14.5×½=7.25
