Решите уравнение х*14*10=280; 163+37 х+18 х=328; (573+а) - 173=617; 108 - (90+у) = 15

X*14*10=280

x*140=280

x=280:140

x=2

163+37x+18x=328

163+55x=328

55x=165

x=3

(573+а) - 173=617

573+a=780

a=207

X*14*10=280

x*140=280

x=280/140

x=2

163+37x+18x = 328

37x+18x = 328-163

55x = 165

x = 165/55

x = 3

(573+a) - 173 = 617

573+a = 617+173

a = 617+173-573

a = 217

180 - (90+y) = 15

- (90+y) = 15-180

-90-y=-165

-y=-165+90

-y=-75

y=75