0,(7) = 7/9
0,2(3) = (23-2)/90 = 21/90 = 7/30
7/9 * (х+1) = 7/30 * 30
7/9 * (х+1) = 7
х + 1 = 9
х = 8
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
0,(7) = 7/9
0,2(3) = (23-2)/90 = 21/90 = 7/30
7/9 * (х+1) = 7/30 * 30
7/9 * (х+1) = 7
х + 1 = 9
х = 8