Question

if (x, -4) is a solution to the equation 5x = -6y - 4, what is x

Answer 1

Explanation:

To find x we have to replace the solution into the equation - meaning we have to replace y = -4 - and solve for x:

$\begin{gathered} 5x=-6y-4 \\ \text{replacing y = -4} \\ 5x=-6\cdot(-4)-4 \\ 5x=24-4 \\ 5x=20 \\ x=\frac{20}{5}=4 \end{gathered}$

Answer:

x = 4