Solve and check. 4.2 + x = 9.9

Holt McDougal Larson Pre-Algebra Common Core Edition page 741 number 38

Asked by Dee Dee on 19 Apr 10:07

Last updated by anonymous on 19 Apr 18:46

Answered by CherieS on 19 Apr 18:46

4.2 + x = 9.9

4.2+x-4.2=9.9-4.2

x=5.7

Check:

4.2 + x = 9.9

4.2+5.7=9.9

9.9=9.9