Question

решите уравнение (900-200):(4х-2)=40

Answer 1

(900-200):(4х-2)=40
700 : (4х-2)=40
4х-2=700 :40
4х-2=17,5
4х=17,5+2
4х=19,5
х=19,5 :4
х=4,875
проверим
(900-200):(4*4,875-2)=40
700 : (19,5-2)=40
700 : 17,5=40
40=40

Answer 2

(900-200):(4х-2)=40;
700 : (4х-2)=40;
4х-2=700 :40;
4х-2=17,5;
4х=17,5+2;
4х=19,5;
х=19,5 :4;
х=4,875;