Question

Part B

Transform the equation that you identified in part a so the variable k is alone on one side of the equation.
k+a=500 (1)
3k+10a=3,600 (2)

Answer 1

k = 500 - a

Explanation:

To isolate the variable

�

k in equation (1), you can subtract

�

a from both sides of the equation:

�

+

�

=

500

k+a=500

Subtract

�

a from both sides:

�

=

500

−

�

k=500−a

So, the equation with

�

k alone on one side is

�

=

500

−

�

k=500−a.