Question

помогите помогите помогите

Answer 1

57:(4х-5)+14=51:3
57:(4х-5)+14=17
57:(4х-5)=17-14
57:(4х-5)=3
(4х-5)=57:3
4х-5=19
4х=19+5
4х=24
х=24:4
х=6

57:(4*6-5)+14=57:(24-5)+14=57:19+14=3+14=17