Find the solution to make or equations given below using elimination by addition -41 + 2y = 10
42 + 3y = 5
A.
1 = 6,3 =
B.
= -1, y =13
C. = = -3, y = 11
D. I = -', y = 3

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of