How to solve these equations?

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Ok, I've found multiple solutions to these but I don't exactly know how to do them properly, can someone please help:
1) (4x+3)/2 +x= (5x+41)/4
2)( 5/7 (x-2)) - (3/4(x+3)) = -4

Posted Fri 1st June, 2012 @ 14:45 by mightaswellbehezzyb

1 Answer

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1) (multiply equation out by 4) so 8x+6+4x=5x+41

(put all x's on one side and all numbers on other) 8x+4x-5x=41-6


(divide by 7) x=5

2) (multiply equation out by 28) so (20(x-2))-(21(x+3))=-112

(expand brackets) (20x-40)-(21x+63)=-112


(put all x's on one side and numbers on the other) -40-63+112=-20x+21x


Answered Fri 1st June, 2012 @ 18:54 by Dilly