Пожалуйста помогите!!! 1.

−5(4x−4)=−4−18(x−8)


−20x .... =−4 .... +144


−20x .... x=−4 .... +144


.... x= ....


x =


2.

E=8n+7

1. n=(7−E)⋅8

2. n=(E−7)⋅8
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