Kim’s age is three times that of her sisters age. when you add kim’s age to her sisters age, you get 40. how old is each sister? (a) write an equation that represents the situation. explain any variable used. (b) solve the equation from part (a). show your work. state your solution as a complete sentence.

her sister is 10

Step-by-step explanation:

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

50*10 is greater

step-by-step explanation:

if you add the zero from 10 to 50, it will give you a bigger number.