Answer: Infinite number of solutions; if you need the answer, it will be all real number
Explanation:
To find out how many solutions a equation has, you need to first simplify it.
Given
-4(x+5)=-4x-20
Distributive property
-4x-20=-4x-20
Add -4x on both sides
-20=-20
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As seen above, both sides have the same expression. This means any number that is substitute as x will give the same result on both sides so there are infinite number of solution.
All real number (ARN) will be the answer for this equation.