Ответ:
Пошаговое объяснение:
1) 7 (2,3 + 0,8х) + 1,9х =16.1+5.6х+1.9х=16.1+7.5х=16.1+7.5*0.4=19.1
2) 0,9 (6х +5) - 3,2=5.4х+4.5-3.2=5.4х+1.3=5.4*1.2+1.3=7.78
3) 2,5*(3х +0,4) - 5,1х=7.5х+1-5.1х=2.4х+1=2.4*8+1=20.2
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
Ответ:
Пошаговое объяснение:
1) 7 (2,3 + 0,8х) + 1,9х =16.1+5.6х+1.9х=16.1+7.5х=16.1+7.5*0.4=19.1
2) 0,9 (6х +5) - 3,2=5.4х+4.5-3.2=5.4х+1.3=5.4*1.2+1.3=7.78
3) 2,5*(3х +0,4) - 5,1х=7.5х+1-5.1х=2.4х+1=2.4*8+1=20.2