Question

Solve the system x+3=22 2x-y=2

Answer 1

Hello from MrBillDoesMath!

Answer:

x = 19, y = 36

Discussion:

x + 3 = 22     (*)

2x - y = 2      (**)

Subtract 3 from both sides of (*)

x + 3 -3 = 22 = 3 = 19  =>

x = 19

Substitute x= 19 in (**)

2(19) - y = 2 =>

38 - y = 2 =>           (add y to both sides)

38 -y + y = 2 + y =>

38 = 2 + y  =>         (subtract 2 from both sides)

38 -2 = 2 -2 + y =>

36 = y

Regards,  

MrB

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