Answer:
[tex]x \approx 2.18[/tex]
Step-by-step explanation:
[tex]3(x+4.5x)=36[/tex]
we can use the distributive property and get
[tex]3(x)+3(4.5x)=36\\\\3x+13.5x=36\\\\[/tex]
and we can add like terms
[tex](3+13.5)x=36\\\\16.5x=36[/tex]
and know we divide both sides by 16.5
[tex]16.5x*(\frac{1}{16.5})=36*(\frac{1}{16.5})\\\\x=\frac{36}{16.5}[/tex]
and doing the dvision we get that
[tex]x\approx 2.18[/tex]