Hello guys I am new here and I don't know how to answer your question
When y= 14, if y= 7 then x= 16 if x= 8. you just double your number
10(x2) = 70(x)
10x2 - 70x
10x = 70
<span>
x = 7 </span>

we have to solve for x , solving for x means , we have to isolate x one one side , by shifting all other variables to other side
So

Multiply both sides by 2
2A = h(x+y)
Divide both sides by h
2A/h = x+y
Subtract y from both sides

or

Answer:
between 7 and 8
Step-by-step explanation: