1. Is 3x + 1 / 2 = 5 / 3, X equal to 7 / 18, X-2 / 9 = 10 / 21, X equal to 30 / 7
1 is right
2 x - (4x out of 9) = 10 out of 21 x is equal to 6 out of 7
9x/9-4x/9=10/21
5x/9=10/21
105x=90
x=6/7
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