8*4b-8*7-3*5b-3*9=21b+7
32b-56-15b-27=21b+7
(32b-15b)-(56-27)=21b+7
17b-29=21b+7
b=-1
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
8*4b-8*7-3*5b-3*9=21b+7
32b-56-15b-27=21b+7
(32b-15b)-(56-27)=21b+7
17b-29=21b+7
b=-1