решите уравнение (60-10х):4+12=22. Created by firuzagambarova2004. matematika-ru

решите уравнение (60-10х):4+12=22...

firuzagambarova2004 @firuzagambarova2004

July 2022 1 8 Report

решите уравнение
(60-10х):4+12=22

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OmarK1108
$\frac{60 - 10x}{4} + 12 = 22 \\ \frac{60 - 10x}{4} \times 4 + 12 \times 4 = 22 \times 4 \\ 60 - 10x + 48 = 88 \\ 108 - 10x = 88 \\ 108 - 88 = 10x \\ 20 = 10x \\ x = 2 \\ \frac{60 - 10 \times 2}{4} + 12 = 22 \\ \frac{60 - 20}{4} + 12 = 22 \\ \frac{40}{4} + 12 = 22 \\ 10 + 12 = 22 \\ 22 = 22$

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