Вопрос школьника по предмету Математика
помогите пожалуйста! решить уравнение: г) 5/7 -(m-1)=11/14; д) 1 5/6-(y+2/3)=1 1/2
Ответ учителя по предмету Математика
-5/7-(m-1)=11/14
-5/7-m+1=11/14
2/7-m=11/14
m=2/7-11/14
m= 4/14-11/14
m=-7/14=-1/2
—
15/6-(у+2/3)
y+2/3=1 5/6-1 1/2
y+2/3=1 5/6-1 3/6
y+2/3=2/6
y+2/3=1/3
y=1/3-2/3
y=1/3
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