Question

Solve log11 (y + 8) + log11 4 = log11 60

Answer 1

log11 (y + 8) + log11 4 = log11 60
am assuming 11 is a base, so
log11 (y + 8) = log11 60- log11 4
remember when you subtract numbers you divide logs:
log11 (y + 8) = log11 (60/4)
log11 (y + 8) = log11 15
now just ignore the log11
y + 8 = 15
y = 7

Answer 2

You can also do it this way:

\(\log_{11} {4(y+8)} = \log_{11}{60}\)

then set 4(y+8) = 60

and solve for y