Respuesta :

The answer should be x= 18

Multiply the numbers

5.4+0.05x=0.15(24+x)

Move the variable to the left side c=and change the sign

5.4+0.05x-0.15x=3.0

collect terms

-0.1x=3.6+5.4

Divide both sides of the equation by -.01

x=18