Вопрос школьника по предмету Математика
Найдите корень уравнения:
1)9(х-1)=х+15
2)(11х+14)-(5х-8)=25
Ответ учителя по предмету Математика
1)9(x-2)=x+15
9x-18=x+15
9x-x=15+18
8x=33
x=4.125
2)11x+14-5x+8=25
11x-5x=25-8-14
6x=3
x=0.5
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