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Dan from Saint Paul, MN's Resources

-5X + 4Y where X = 1/2 and Y = -1   -5 (1/2) + 4(-1)    - 11/2 + -4 =   -11/2 + - 8/2 =   -19/2 = -9 1/2   HOWEVER   the...

OK,   a ( x + b) = c   ax + ab = c   subtract ab from both sides, so...   ax = c - ab   divide out a from both sides   x=...

(X + 1)(a - 4) = y -2   Solve the equation for X   Do i do foil method so then I end up with    ax - 4x + a - 5 = y -2 (?)    Or am I...