Answer:
[tex]x=-6[/tex]
Step-by-step explanation:
[tex]5x+8+3x+4=-40+4[/tex]
⇒ Subtract 4 from both sides:
[tex]5x+8+3x+4-4=-40+4-4[/tex]
[tex]5x+8+3x=-40[/tex]
⇒ Combine like terms:
[tex]5x+3x=8x[/tex]
[tex]8x+8=-40[/tex]
⇒ Subtract 8 from both sides:
[tex]8x+8-8=-40-8[/tex]
[tex]8x=-48[/tex]
⇒ Divide both sides by 8:
[tex]\frac{8x}{8}=\frac{-48}{8}[/tex]
[tex]x=-6[/tex]
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