Divide both sides by
−
1
.
6
−1.6.
2
c
+
1
2
=
−
1
2
1
.
6
2c+12=−
1.6
12
2 Simplify
1
2
1
.
6
1.6
12
to
7
.
5
7.5.
2
c
+
1
2
=
−
7
.
5
2c+12=−7.5
3 Subtract
1
2
12 from both sides.
2
c
=
−
7
.
5
−
1
2
2c=−7.5−12
4 Simplify
−
7
.
5
−
1
2
−7.5−12 to
−
1
9
.
5
−19.5.
2
c
=
−
1
9
.
5
2c=−19.5
5 Divide both sides by
2
2.
c
=
−
1
9
.
5
2
c=−
2
19.5
6 Simplify
1
9
.
5
2
2
19.5
to
9
.
7
5
9.75.
c
=
−
9
.
7
5
c=−9.75