Вопрос школьника по предмету Математика
помогите пожалуйста срочно!
-3,2*(2X+7)-11,8=3,2
Ответ учителя по предмету Математика
-3,2*(2х+7)-11,8=3,2
-3,2(2х+7)=3,2+11,8
-3,2(2х+7)=15
2х+7=15:(-3,2)
2х+7=-75/16
2х=-4 11/16-7
2х=-11 11/16
2х=-187/16
х=-187/16:2
х=-187/32
х=-5 27/32
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