1) 3x +8 = x - 12
2) 2y = 7y + 10
3) - 5y + 13 - 6 = -y - 1
4) 15(x +2) = 45.
5) 12 – 0,8y = 26 +0,6y
помогите СРОЧНО НАДО!!!
2) 2y = 7y + 10
3) - 5y + 13 - 6 = -y - 1
4) 15(x +2) = 45.
5) 12 – 0,8y = 26 +0,6y
помогите СРОЧНО НАДО!!!
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Ответ:
1) х = -10
2)у = -2
3)у = 2
4)х = 28
5)у = -10