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2009-12-23T08:45:46+01:00
(-5a + b-3)-(2a-3b + 5)-(4a-b-8) = -5a + b - 3 - 2a + 3b - 5 - 4a + b + 8 = - 11a + 5b
2009-12-23T08:46:44+01:00
(-5a plus b-3)-(2a-3b plus 5)-(4a-b-8)=
-5a+b-3-2a+3b-5-4a+b+8=
-11a+5b
2009-12-23T08:54:28+01:00
( -5a + b - 3 )-( 2a - 3b + 5 ) - ( 4a - b - 8 ) =
-5a + b - 3 - 2a + 3b - 5 - 4a + b + 8 =
-11a + 5b

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