log 7 36 - log 7 (3x-12) = log 7 4
log 7 (36/(3x-12))= log 7 4
36/(3x-12)= 4
12/x-4=4
12=4x-16
4x=28
x=7
log7 36 - log7 (3x-12) =log7 4 одз: 3х-12>0
log7 36 = log7 4(3x-12) х>4
36=12x-48
12x=84
log 7 36 - log 7 (3x-12) = log 7 4
log 7 (36/(3x-12))= log 7 4
36/(3x-12)= 4
12/x-4=4
12=4x-16
4x=28
x=7
log7 36 - log7 (3x-12) =log7 4 одз: 3х-12>0
log7 36 = log7 4(3x-12) х>4
36=12x-48
12x=84
x=7