Two sets of the sum of a number and eight are added to five times the same number

so, converting firstly the mixed fractions to improper fractions and then "adding".

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

the answer is "add 2y and y"

step-by-step explanation:

you need to collect the like terms first.