Answer:
14x+28+21=
14*1+28*1+21
14+28+21
35+28
63
Step-by-step explanation:
x=3.15
Hope this helps... the part with the 2 9/20 had me a bit confuzzled XD
Since there is a variable, there are infinitely many solutions.
i cant really see the question but ill guess 4 or 4.065