Answer:
[tex]x<\frac{16}{125}[/tex]
Step-by-step explanation:
First we will multiply everything by 10 to get rid of the decimals.
[tex]4.2x*10+5.6*10<7.2*10-8.3x*10\\42x+56<72-83x[/tex]
Subtract 56 from both sides:
[tex]42x+56-56<72-83x-56\\42x<-83x+16[/tex]
Add 83x to both sides:
[tex]42x+83x<-83x+16+83x\\125x<16[/tex]
Divide both sides by 125:
[tex]\frac{125x}{125}<\frac{16}{125}\\x<\frac{16}{125}[/tex]
