Respuesta :

wegnerkolmp2741o

Answer:

y =9

Step-by-step explanation:

11y=(18)²-(15)²

Square the terms

11y = 324-225

Subtract

11y=99

Divide by 11

11y/11 = 99/11

y =9

Purplefox1212

Answer:

y=9

Step-by-step explanation:

11y=(18)²-(15)²

18 exponent 2 is 324 and 15 exponent 2 is 225.

324-225 = 99 so

11y=99

Now Isolate the variable by dividing by 11 on both sides

11y÷11=99÷11

y=9