¿Cuál es el valor de la expresión 8m-2 cuando m = 4?

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Hello i need some with trigonometric substitutions. [tex]\int\limits^a_b {x} \, dx[/tex]

Aformual for 8 bottles of window cleaner calls for 6 cups of rubbing to customers alcohol 2 1/4 gallons of water and 1 1/2 cups of ammonia alcohol would the forula call if a factory made 1,280 bottles for stores to sell to customers