Solve for x:?

Will guess at:-
8 / 9 = 72 / x
8x = 9 x 72
x = 9 x 9
x = 81

8/9 = 72/x
then by cross multiplication,
8x = 72 multiply 9
x = 72 multiply 9/8
x = 9 multiply 9
x = 81

Do you mean: 8/9 = 72/x

8/9 = 72/x
x(8/9) = x(72/x)
8x/9 = 72
9(8x/9) = 9(72)
8x = 648
x = 648/8
x = 81

8/9=72/x
8*x=72*9
x=72*9/8
x=9*9
x=81

If I understood write there is 8/9=72/x? If so, then
x=72*9/8=9*9=81!

i assume you mean:

8/9 = 72/x ?

8x = 72*9
8x = 648
x = 648/8
x = 81

(8/9)=(72/x)
=>(9/8)=(x/72)
=>9=(x/9)
=>x=81

9, right?

It's hard to read the problem. Is it 8/9 = 72/x? If so, the answer is 81.

872 = 9x

Divide

x = 96 8/9

Was that the question?

Oh.


Okay

(8/9) = (72/x)

Cross multiply

8x = (9 * 72)

8x = 648

x = 81