Question

2+4×3×=42 show all work

Answer 1

2 + 4(3^x) = 42

4(3^x) = 40
3^x = 10
log 3^x = log 10
x log 3 = 1
x = 1/log3 = appr. 2.096

check:
LS = 2 + 4(3^2.096)
= 42.004
RS = 42

not bad, could have carried more decimals if needed.