179,699 views
45 votes
45 votes
Solve for x.

X
X+5
8
12
x = [?]
X
Enter the number that belongs in
the green box.

Solve for x. X X+5 8 12 x = [?] X Enter the number that belongs in the green box.-example-1
User Fossfreedom
by
3.4k points

1 Answer

25 votes
25 votes
x / x + 5 = 8 / 12
x / x + 5 = 2 / 3
3x = 2(x + 5)
3x = 2x + 10
x = 10

Check:
x / x + 5
10 / 10 + 5
10 / 15
2 / 3 :)
User Lemmerich
by
3.0k points