K kklover New member Joined Apr 12, 2011 Messages 3 Apr 12, 2011 #1 How do i do -6x+3/4-5x=129/4 So far i have combine like terms so that would be -11x+3/4=129/4 then subtract 3/4 to get -11x=126/4 then divide by 11 is this right? :twisted:
How do i do -6x+3/4-5x=129/4 So far i have combine like terms so that would be -11x+3/4=129/4 then subtract 3/4 to get -11x=126/4 then divide by 11 is this right? :twisted:
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,325 Apr 12, 2011 #2 Pretty good, excepting the NEGATIVE 129 that turned magically into POSITIVE 129. Be careful.
D Denis Senior Member Joined Feb 17, 2004 Messages 1,700 Apr 12, 2011 #3 Move terms by changing sign(!): 6x + 5x = 3/4 - 129/4 11x = -126/4 CROSS MULTIPLY(!!): 44x = -126 x = -126/44 = -63/22 Oh Oh......... :roll:
Move terms by changing sign(!): 6x + 5x = 3/4 - 129/4 11x = -126/4 CROSS MULTIPLY(!!): 44x = -126 x = -126/44 = -63/22 Oh Oh......... :roll:
