Reshit urovneniye 70×60+x=83×100

Question

Reshit urovneniye 70×60+x=83×100

Answer 1

4200+x=8300. X=8300-4200. X=4100

Answer 2

83*100=8300=70*60+х
70*60=4200
8300-4200=4100
х=4100

Comments

a kak yesli stait znak +

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4200+x=8300

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,8300-4200