Question

Упростите выражение 16.5-1.3х+3.5-4.7х

Answer 1

16.5+3.5=1.3х+4.7х
 20=6х
х=20/6
х=10/3
х=2 1/3

Answer 2

(16.5+3.5)=20
-1.3х-4.7х=-6х
20-6х