Answer:
42=2[{45-3(14-21)}+4]
42=2[{45-3×-6}+4]
42=2[{45-18}+4]
42=2[{27}+4]
42=2[27+4]
42=2×31
42=62
b i think
Step-by-step explanation:
a-9=20
a=20+9
a=29
b-9>20
b>29
18
12+24/4
12+6
jdndhdjd
