Question

Question 12 (4 points)

Solve this system of equations without graphing
5x + 2y = 29
5x-2y = 41

Answer 1

`(5x + 2y = 9) \\ - (5x - 2y = 41)`

4y= 32

y=32÷4

y=8

5x + 2y=9

5x + 2×8=9

5x + 16=9

5x=-17

x= -17÷5

`y = ( - 17)/(4)`