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OpenStudy (anonymous):
(r-4s+5)+(2r+3a)+(s+6) The answer is 3r-3s+11+3a is that correct please
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OpenStudy (anonymous):
correct
OpenStudy (amistre64):
(1r -4s+5)+ (2r+3a ( s +6) ------------- 3r +3a -3s +11
OpenStudy (amistre64):
you got all the right parts :)
OpenStudy (anonymous):
thanks a lot you have been a big help I am trying to learn this.
OpenStudy (amistre64):
the tricky part is when they have a '-' in front of a () you jsut gotta switch all the signs in there then -(6x +9y -z) = +(-6x -9y +z)
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