Answer:
Step-by-step explanation:
log3^(2x+3) = log243
(2x+3)log3 = log243
2x+3 = log243/log3
2x = (log243/log3)-3
x = [(log243/log3)-3]/2
x = (5-3)/2
x = 2/2
x = 1
Check:
3^2(1)+3 = 243
3^2+3 = 243
3^5 = 243
3×3×3×3×3 = 243
9×9×3 = 243
81×3 = 243
243 = 243
Answer:
53
Step-by-step explanation:
42/6=7
7*5=35
18+35=53
Answer:
15y=30x-3z*5
Step-by-step explanation:
Answer:
23
Step-by-step explanation:
133 = 18 + 5x
155 = 5x
23 = x