Question

помогите срочно дам все баллы N1059

Answer 1

$1);3frac67x-frac79x+4frac4{63}x=3frac{54}{63}x-frac{49}{63}x+4frac4{63}x=7frac9{63}x=7frac17x\2);2frac29y+3frac15y-2y=2frac{10}{45}y+3frac9{45}y-2=3frac{19}{45}y\3);5frac3{10}-2frac7{100}-frac2{25}x=5frac{30}{100}x-2frac7{100}-frac8{100}x=7frac{15}{100}x=7frac3{20}x\4);5y-4frac38y+frac45y=5y-4frac{15}{40}x+frac{32}{40}x=1frac{17}{40}x$