(2) Answers

x1/2 + x1/4=20 /x 4 2x1 + x1=80 3x1=80 /:3 x1= 26 2/3

1/2 x + 1/4 x= 20 /*4 2x+1x=80 5x=80/:5 x=16

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(2) Answers

x1/2 + x1/4=20 /x 4 2x1 + x1=80 3x1=80 /:3 x1= 26 2/3

1/2 x + 1/4 x= 20 /*4 2x+1x=80 5x=80/:5 x=16

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