Option 4 is not true
Step-by-step explanation:
1)Cross multiply,
ad = bc
So, true
2) a/ c = b/d also true
3) a+b/b = c+d/d  also true
For example:
When simplifying 10/8, it is 5/4.
5) b/a = d/c is also true
x is greater than 5
step-by-step explanation:
2x+7 is greater than 17
-7 -7
2x is greater than 10
divide by 2 each side