Given the formula below, solve for x.

A.

B.

C.

D.

Step-by-step explanation:

Perform the indicated multiplication.  We get:

y - y1 = mx - mx1

Isolate mx by adding mx1 to both sides:

y - y1 + mx1 = mx

Finally, isolate x by dividing both sides by m:

         y - y1 + mx1

x    =

                 m

a negative exponent is translated as follows:

so, we have