What is the solution?
a)c = 0 and c = 3
b)all real numbers
c)all real numbers, except c ¹ 0 and c ¹ 3
d) no solution

This is a system of equations, in which, you have one equation to the left-hand-side and another on the right-hand-side

let's evaluate the left-hand-side then



notice, the left-hand-side turned out to be exactly the same expression as the right-hand-side, that simply means, both expressions are equal

for a system of equations, that simply means infinitely many solutions, or in short notational terms , so, "c" can be any real number except 0 or 3, because if it ever becomes 0 or 3, notice, some denominators go poof and the fraction becomes undefined.

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8