The equation is 3x+20=-4 .
[tex]3x=-4-20[/tex][tex]3x=-24[/tex][tex]x=-8[/tex]Hence the answer is x=-8.
For checking the answer x=-8 , substitute the value of x in the given equation .
[tex]3\times-8+20=-4[/tex][tex]-24+20=-4[/tex][tex]-4=-4[/tex]Hence verified.
