How to change a subtration problem into a additon problem

Paula sold 35 packages of wrapping papper for this years booster club fundraizer. this is one less than twice the number of packages that she sold last year. how many fundraizers did paula sell last year

What is 1 + 6r + r > - 27

What is 0.55 hectometers expressed in decimeters?

Two angles are given m m

How would I have to make the first digit of the quotient

Theorem: the sum of any two even integers equals 4k for some integer k. "proof: suppose m and n are any two even integers. by definition of even, m = 2k for some integer k and n = 2k for some integer k. by substitution, m + n = 2k + 2k = 4k.

Gregory's age is 5 years greater than 1/3 of Amanda's age. Gregory is 17 years old. If Amanda's age is denoted by x, which equation represents this situation and how old is Amanda?

What is nuclear waste? whats the answer frnds

Assume your faucet drips at the rate of 3 drops per minute. Further assume that 20 drops is equal to 1 ml. How many drops will it drip in one day?

A gold and copper bracelet weighs 238 grams. The volume of the bracelet is 15 cubic centimeter, and copper weighs 9 grams per cubic centimeter. How many grams of copper are mixed with the gold?