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Aflati ,,floricica" din egalitatea:


[ ( 9xf-21) :3+75 ] :7=358-74x4​


Răspuns :

[tex]((9x - 21) \div 3 + 75) \div 7 = 358 - 74 \times 4[/tex]

[tex](27x - 63 + 75) \div 7 = 358 - 296[/tex]

[tex](27x + 12) \div 7 = 62[/tex]

[tex] \frac{27x + 12}{7} = 62[/tex]

[tex]27x + 12 = 434[/tex]

[tex]27x = 434 - 12[/tex]

[tex]27x = 422[/tex]

[tex]x= \frac{422}{27} [/tex]