Question

is (-1, -3) a solution to this system of equations?
16x - 7y = 5
x = -1
yes no

Explanation:

Step1: Check the second equation

The second equation is \( x = -1 \). For the point \((-1, -3)\), the \( x \)-coordinate is \(-1\), so it satisfies the second equation.

Step2: Check the first equation

Substitute \( x = -1 \) and \( y = -3 \) into the first equation \( 16x - 7y = 5 \).
Left - hand side (LHS): \( 16\times(-1)-7\times(-3)=-16 + 21=5 \)
Right - hand side (RHS): \( 5 \)
Since LHS = RHS, the point \((-1, -3)\) satisfies the first equation.

Answer:

yes