Решите уравнения: 1) 100/(19+(15x-84)/6)=4 2) (72-64/(40-8x))*4=272. Created by apelsin33. matematika-ru

(40-8x))*4=272...

July 2022 1 10 Report

Решите уравнения:
1) 100/(19+(15x-84)/6)=4
2) (72-64/(40-8x))*4=272

Answers & Comments

wolveren79 1)
19+15x-84=100/4
15x-65=25
15x=25+65
15x=90
x=90/15
x=6

2)
72-64/(40-8x)=272/4
72-64/(40-8x)=68
64/(40-8x)=72-68
64/(40-8x)=4
40-8x=64/4
40-8x=16
8x=40-16
8x=24
x=24/8
x=3

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