Kimberlee
8

# If A+ B = 76 A-b = 38 A ÷ B =?

$A+B=76\to A=76-B\\\\A-B=38\to A=38+B\\\\\Downarrow\\\\38+B=76-B\\B+B=76-38\\2B=38\ \ \ /:2\\B=19\\\\\Downarrow\\\\A=76-19=57$ $\Downarrow\\\\A:B=57:19=3$