Decimals to 10, multipliers to 10
1.
7e + 4 = 17.3
e =
2.
2n + 4 = 14.4
n =
3.
3v + 3 = 8.4
v =
4.
3b - 5 = 7.6
b =
5.
3v - 4 = 3.2