this can be solve by 3 variable equation
let x be the money of luke
y money of rachel
z money of daniel
first equation
x = y + 21
second equation
x = z + 48
third equation
x + y + z = 168
solving simultaneously
x =79
y = 58
z = 31
<span> </span>
Answer:
75 each month
Step-by-step explanation:
578-128=450
450/6=75
Answer:
16 = 216, 17 = 180, 18 = 252
Step-by-step explanation:
Hope this helps!
Answer:

Step-by-step explanation:
Multiply both sides by 2
2x=3y+6
Move variable to the left-hand side and change its sing
-3y=6-2x
Divide both sides of the equation by -3

Look at the picture..............