7x+4x-7=127 решите уравнение плиз) Сегодня срочно надо). Created by 2303122146. matematika-ru

7x+4x-7=127 решите уравнение плиз) Сегодня срочно надо)...

zhenyaM2002

Verified answer

7х + 4х - 7 = 127
11х - 7=127
11х = 127+7
11х= 134
х= 134 : 11= 134/11
х= 12 2/11
проверим:
7 * 12 2/11 + 4 * 12 2/11 - 7 =127
7/1 * 134/11 + 4/1 * 134/11 - 7 =127
938/11 + 536/11 -7 = 127
1474/11 - 7 =127
134 - 7 = 127
127=127

0 votes Thanks 0

masharusnakmarisha 7x+4x-7=127
7x+4x=127+7
11x=134
x=134:11
x=134/11=12 2/11

0 votes Thanks 0

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