1) 5(8x-1)-7(4x+1)+8(7-4x)=9 2)** фотографии

Question

1)
5(8x-1)-7(4x+1)+8(7-4x)=9

2)на фотографии

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Answer 1

40x-5-28x-7+56+32x=9
42x+44=9
42x=9-44
42x=35
7
x=1------
35