Question

Solve using substitution3x+8y= -14y=2(?,?)​

Answer 1

We have $3x+8y=-14$ substituting $y=2$ we get $3x+8\cdot2=-14$ then we solve for $x$ and find that $x=-10$.

So the solution is point where these two lines intersect, namely $P(-10,2)$.

Hope this helps.