5(8х-1)-7(4х+1)+8(7-4х)=9 решите уравнение

Question

5(8х-1)-7(4х+1)+8(7-4х)=9 решите уравнение

Answer 1

40x-5-28x-7+56-32x=9. -20x+44=9. -20x=9-44. -20x=-35. X=1.75

Answer 2

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