Please help me on this question

x =

Step-by-step explanation:

Given

a = - r ( add r to both sides )

a + r = ( multiply both sides by k to clear the fraction )

k(a + r) = 7x ( divide both sides by 7 )

= x

        ak - kr                 k(a - r)

x =  or  x =

             7                          7

Step-by-step explanation:

1. Multiply all three terms by k to eliminate the fraction:

ak = 7x - kr

2.  Subtract kr from both sides:

7x = ak - kr

3.  Divide both sides by 7:

        ak - kr                 k(a - r)

x =  or  x =

             7                          7

c. 16 units

step-by-step explanation:

mark brainliest and have a great day!

y > 1/3x

y < = -x + 4

hope this : )