Question

\(\frac{17}{2}\)-|2.x-\(\frac{3}{4}\)|=-\(\frac{7}{4}\)

Answer 1

\(2x-\frac{3}{4}=\frac{17}{2}--\frac{7}{4}\)

\(2x-\frac{3}{4}=\frac{41}{4}\)

2x=\(\frac{41}{4} +\frac{3}{4}\)

\(2x=\frac{44}{4}=11\)

x=11\(\div\)2=5,5 hoặc -5,5

vậy x =5,5 hoặc -5,5

Answer 2

tui ko chép lại đề đâu nhé

\(\left|2x-\frac{3}{4}\right|=\frac{17}{2}-\frac{7}{4}\)

\(\left|2x-\frac{3}{4}\right|=\frac{27}{4}\)

\(2x-\frac{3}{4}=\pm\frac{27}{4}\)

Th1:\(2x-\frac{3}{4}=\frac{27}{4}\)

\(2x=\frac{15}{2}\)

\(x=\frac{15}{4}\)

Th2:\(2x-\frac{3}{4}=-\frac{27}{4}\)

\(2x=-6\)

x=-3