[tex]0.75\left(x+16\right)=3-0.5\left(x-8\right)[/tex]
[tex]0.75\left(x+16\right)\cdot \:100=3\cdot \:100-0.5\left(x-8\right)\cdot \:100[/tex]
[tex]75\left(x+16\right)=300-50\left(x-8\right)[/tex]
[tex]75x+1200=-50x+700[/tex]
[tex]5x+1200-1200=-50x+700-1200[/tex]
[tex]75x=-50x-500[/tex]
[tex]75x+50x=-50x-500+50x[/tex]
[tex]125x=-500[/tex]
[tex]\frac{125x}{125}=\frac{-500}{125}[/tex]
[tex]x=-4[/tex]
Hope I helped you!
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