1) Find the values of a and b if (3a + 11, 2b - 5) = (3,-2).

Do I have have to substitue 3 into a, and -2 into b???

2) Find an equation for the given points on a line (-2,-3) and (5,-4).

Is it y= -1/7(x) - 23/7?

3) Find an equation of a circle with center (-2,-3) tangent to the line y=7.