Step-by-step explanation:
Perhaps you want to solve the equation for the value of x. If so then let us work it out:

Answer:
Adding 7 to both sides of the equal sign
Step-by-step explanation:
Do y-y over x-x
So 10-4 = 6 and -7 - 1 = -8
6/-8 = -.75 is your slope
plug it into a y= Mx + b equation along with a y and x pair
4 = -.75(1)+ b
4 = -.75 + b
Solve the equation which gets you to b= 4.75
So y = -.75x+ 4.75 is your answer