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3x -1/5. - x/7. = 3
7(3x -1) /5 *7. - 5x / 7*5.= 3
21x -7. /35. - 5x / 35. = 3
(21x. -5 x -7.) /35 = 3
(16 x -7 )/35. =3
16x -7 = 3 *35
16 x. = 105 +7
16 x / 16 = 112/16
x =7
hope it helps..
7(3x -1) /5 *7. - 5x / 7*5.= 3
21x -7. /35. - 5x / 35. = 3
(21x. -5 x -7.) /35 = 3
(16 x -7 )/35. =3
16x -7 = 3 *35
16 x. = 105 +7
16 x / 16 = 112/16
x =7
hope it helps..
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