Standard Form OF Equation - page 314 HW answers

Remember:

A, B and C must be integers (no fractions or decimals)
A must be positive  [A > 0 ]
Order must be :  Ax +By = C

Page 314 homework answers:

11) x - y = -5
13) 2x + y = 5
15) 3x + 2y = -20
17) 2x + 3y = -4
19) 4x - 3y = 3
21) x - 2y = -2

23 - 27 answers are in text