Предмет: Математика, автор: лилия258

(-0,8х+2,32):(-0,4)=3х-7,9
Решите уравнение) 

Ответы

Автор ответа: noiriel
0
-(-frac{8}{10}x+frac{232}{100})cdotfrac{10}{4}=3x-frac{79}{10} \ 2x-frac{232}{40}=3x-frac{79}{10} \ 2x-3x=frac{232}{40} - frac{79}{10} \ -x = frac{232 - 79*4}{40}=-frac{84}{40}=-frac{21}{10} \ x = 2.1
Автор ответа: As121
0
смотрели правильно?
Автор ответа: azizbek91
0
-0,8x+2,32=-1,2x+3,16
-0,8x+1,2x=3,16-2,32
0,4x=0,84
x=2,1
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