Ответ:
[tex]502 - (217 - x) = 421[/tex]
[tex]217 - x = 502 - 421[/tex]
[tex]217 - x = 81[/tex]
[tex]x = 217 - 81[/tex]
[tex]x = 136[/tex]
проверка:
[tex]502 - (217 - 136) = 421[/tex]
[tex]421 = 421[/tex]
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Answers & Comments
217-x = 81
x= 217-81
x= 136
502- ( 217- 136) = 421
Verified answer
Ответ:
[tex]502 - (217 - x) = 421[/tex]
[tex]217 - x = 502 - 421[/tex]
[tex]217 - x = 81[/tex]
[tex]x = 217 - 81[/tex]
[tex]x = 136[/tex]
проверка:
[tex]502 - (217 - 136) = 421[/tex]
[tex]421 = 421[/tex]