Really need answer, don't understand what it want:
Mathematics
Anonym
Question
Really need answer, don't understand what it want:
1 Answer

1. User Answers jimrgrant1
Answer:
y ≈  3.8
Stepbystep explanation:
Given the 2 equations
5x + 2y = 21 → (1)
 2x + 6y =  34 → (2)
To eliminate the terms in x , multiply (1) by 2 and (2) by 5
10x + 4y = 42 → (3)
 10x + 30y =  170 → (4)
Add (3) and (4) term by term
(10x  10x) + (4y + 30y) = (42  170)
34y =  128 ( divide both sides by 34 )
y ≈  3.8 ( to the nearest tenth )