You can call the unknown numbers a and b given: (1) 2a+=+b+%2B+1 (2) a+%2B+b+=+5 ----------- I want to get a and b both on the left side Subtract b from both sides of (1) 2a+-+b+=+1 a+%2B+b+=+5 Now all you have to do is add the equations 3a+=+6 a+=+2 Substitute this in (2) (2) a+%2B+b+=+5 2+%2B+b+=+5 b+=+3 The numbers are 2 and 3
