Step-by-step explanation:
x y is the the side of the perimeter if u know what I mean
EXPLANATION:
-To formulate an equation, you must first know what data the exercise gives us to locate them correctly.
data:
-6 that must be added to a number.
-four times a number that is equal to 4x
-a result that is equal to 50
Now with these data we formulate the equation:

if we solve the equation we have:
Answer:
after 10 weeks.
Step-by-step explanation:
750 - 50x = 250
-50x = 250 - 750
-50x = -500
x = -500/-50
x = 10
Answer: x=-3
Step-by-step explanation:
2x-4(x+3)=x-3
2x-4x-12=x-3
-2x-12=x-3. add 12 to both sides
-2x=x+9. subtract x from both sides
-3x=9. Divide both sides by -3
x=-3