Now, write an equation for the following story: A club puts its members into 5 groups for an activity. After 7 students have to leave early, there are only 3 students left to finish the activity. How many students were in each group?

Hint: Let x be the number of students in each group originally (before any students left).

i believe it is 12

Step-by-step explanation:

hope this helps!

also if you need x as 12 instead of putting 12 put x bc thats what you said in the hint

but the answer is 12

hope this helps!

have a nice day!

The answer is 12

Step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.