Step-by-step explanation:
let's break it down first
[tex] 4x + 8 < 20 [/tex]
[tex]4x < 20 - 8[/tex]
[tex]4x < 12[/tex]
Divide both sides by the coefficient of x which is 4
[tex]4x \div 4 < 12 \div 4[/tex]
[tex]x < 3[/tex]
[tex]4 < x < 3[/tex]
4 is less than x which is greater than 3
x = 4,5,6,7,8,......
since 4 is less than x, x cannot be 4
so x could be 5,6,7,8,9,.......
