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Mathematics

Grade-8

Easy

Question

Solve the equation $fraction numerator 3 minus 7 x over denominator 15 plus 2 x end fraction equals 0$

$\frac{4}{7}$
$\frac{5}{7}$
$\frac{3}{7}$
$\frac{2}{7}$

hint Hint:

$w e space k n o w space t h a t space a over b equals c over d t h e n space a d space equals space b c$

The correct answer is: $3 over 7$

$fraction numerator 3 minus 7 x over denominator 15 plus 2 x end fraction equals 0 w e space h a v e space t o space f i n d space t h e space v a l u e space o f space x 3 minus 7 x space equals space 0 space cross times 15 plus 2 x 3 minus 7 x space equals 0 7 x space equals space 3 x space equals space 3 over 7 space i s space t e space c o r r e c t space a n s w e r$

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