Question

решите уравнения 120+y=6400:20   k:(320+180)=20

 

 

Answer 1

120+у=320
У=320-120
У=200


К:500=20
К=20•500
К=10000

Answer 2

120 + у = 6400 : 20
120 + у = 320
у = 320 - 120
у = 200

k : (320 + 180) = 20
k : 500 = 20
k = 500 * 20
k = 10000