Solve the equation a minus 2 and one-half = 1 and one-half

A would equal 4 because you would first convert the mixed numbers into improper fractions, then move the constant to the right, and finally add the factions

a-2 (1/2) = 1 (1/2)

a - (5/2) = (3/2)

a = (3/2) + (5/2)

a=4