With the slope given as 7/5, the equation in slope=intercept form is
where b is some constant that we don't care about.
Multiply both sides by 5 to clear fractions:
where again c is some constant we don't care about.
Put the equation in the required form Ax+By=C. (Note that when this form is called for, the usual expectation is that the coefficient A is positive.)
and again the constant d we don't care about.
Complete the problem by evaluating the constant by substituting the given values of x and y for a point on the line.
