Answer:
dirk =13.25 hours
charlie =11 75 hours
Step-by-step explanation:
c+d=25------(1)
d-1.5=c-----(2)
from (1),
c+d=25
c=25-d-----(3)
substitude (3) into (2)
d-1.5=c
d-1.5=25-d
2d=26.5
d=13.25
if d=13.25 hours
c+d=25
c+13.25=25
c=25-13.25
c=11.75
Answer:
x = 4
Step-by-step explanation:
2x = 4x - 8
<em>subtract 2x from both sides of the equation</em>
2x - 2x = 4x - 2x - 8
0 = 2x - 8
<em>add 8 to both sides of the equation</em>
0 + 8 = 2x - 8 + 8
8 = 2x
<em>divide both sides of the equation by 2</em>
8/2 = 2x/2
4 = x