Вопрос школьника по предмету Математика
Упростите выражение
А) 4(-3x+2)-(-6-2x)+10x
Б) 7+(-4y+3)-3(2y-5x)-14x
Ответ учителя по предмету Математика
а) 4(-3x+2)-(-6-2x)+10x = -12х+8+6+2х+10х = -12х+8+6+12х (12 сокращаем) = 14
б) 7+(-4y+3)-3(2y-5x)-14x = 7-4у+3-6у+15х-14х = 10-10у+х
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