Question

The pair of variables x=–3, y=8 is the solution to the equation 5x+by=17. Find the coefficient b.

Answer 1

Explanation:

I think I have helped you before with this problem, substitute x and y with -3 and 8 respectively, so 5*(-3)+8b=17, -15+8b=17, 8b=32, divide both sides by 8 and you get b=4