Question

(a:10×8:22-4)×5:20=25
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Answer 1

(a:10×8:22-4)×5:20=25

(a:10×8:22-4)×5=25×20

(a:10×8:22-4)×5=500

(a:10×8:22-4)=500:5

(a:10×8:22-4)=100

(a:10×8:22)=100+4

(a:10×8:22)=104

(a:10×8)=104×22

(a:10×8)=2.288

a:10=2288:8

a:10=286

a=286×10

a=2860