Question

Solve 4kx + 10kx= 7 for x.

A.

B.

C.

D.

Answer 1

the ans is C 14kx= 7

14kx/kx= 7/14

kx=1/2

kx/k=1/2÷k

x=1/2k

Answer 2

x=1/2k

Solution:

4kx+10kx= 7

14kx=7

Divide 14k from both sides.

x=7/14k

x=0.5k