Question

12 -7 21/29+x+4 23/29=12 2/29

Answer 1

$12-7 frac{21}{29} +x+4frac{23}{29}=12frac{2}{29} \ 4frac{8}{29}+x+4frac{23}{29}=12frac{2}{29} \ 9frac{2}{29}+x=12frac{2}{29} \ x=12frac{2}{29} -9frac{2}{29} \ x=3$