Multistep/Var on both sides
# 1
x = -5
#5
a = 18
#13
at = v
# 18
17,19,21
#9
x = {-14,14}
#3
a=3
#7
z = -23
# 14
m = -32 +n
#17
13,67
#10
m = { -4,8}
infinity
#6
g = -4
# 15
b = +/- square root c squared - a squared
# 19
20 in, 55 in
#11
m = { -7,7}
#2
K=3
#8
x = -19
#16
s/2pir - r = h
#20
Olivia spent $97.25 and Camillie spent $175.10
#12
p = { -3,1}