Question

Is (1, -3) a solution to 3y = 2x + 1?

Answer 1

it is if after putting 1 = x and -3 = y, you get the same number on both sides

which in this case, it looks like it will not be

Answer 2

Let's check if (1, -3) is a solution
\[3y=2x+1\]
put x=1
y=-3
\[3\times -3=2\times 1+1\]
Check if both sides are equal, if they are then it's a solution otherwise not