Step-by-step explanation:
x=2/10 - 3/5
Divide
x + 1/5=3/5
Subtract 1/5 from both sides of the equation
x + 1/5 - 1/5= 3/5 - 1/5
x=2/5
Assume the old of Jack is X and the old of Lacy is Y
so ...
do the mathematical model ...
.
X=2Y
(X+7)+(Y+7)= 35
-
THEN
Solve the equation
y= 7
x = 14
First you grapgh 0,-3 then you follow the slope of going 4 up 5 to the right and contine up also on e-where it is 0,-3 you go down 4 and 5 to the left and contine that to make a straught line.
X=1 is the answer hope this helps
It will be negative because he has 422 but purchased 484 which is more than he has . so he is a negativge nuber because owns money
