Answer:
25+n=61
Step-by-step explanation:
megan has 25 numbers so we no to put 25 in the equation but we dont know abbys so we use n to represent that we also know both of thier numbers total equals 61 so we add megans and the variable to signify abbys numbers and set it equal to the amount they both have in total because we know that both of thiers together equals 61.hope this helps!!!