помогите пожалуйста решить уравнения
1) х+7/3 - х/5 = 8
2) 7х^2 - 4х - 24 = -х^2
3) (х+1)^2 = (x-2)^2
4) (х+7)^2 + (x-5)^2 = 2x^2
буду безмерно благодарна
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