Answer:
x=-21/19
Explanation:
Given -> 18+8x=x-3(1+4x)
Distributive Property -> 18+8x=x-3-12x
Combine like terms on right side -> 18+8x=-11x-3
Subtract 8x from both sides -> 18=-19x-3
Add 3 to both sides -> 21=-19x
Divide both sides by -19 -> x=-21/19