\(\frac{3}{8}.x+1=\frac{7}{8}\) \(2012:x+23=526\)
\(\Leftrightarrow\frac{3}{8}.x=\frac{7}{8}-1\) \(\Leftrightarrow2012:x=503\)
\(\Leftrightarrow\frac{3}{8}.x=\frac{-1}{8}\) \(\Leftrightarrow x=4\)
\(\Leftrightarrow x=\frac{-1}{3}\)
Câu a bạn viết lại đề đi nha khó nhìn quá
Câu b
2012 : x + 23= 526
2012 : x = 526-23
2012: x=503
x=2012 : 503
x =4
a. \(\frac{3}{8}.\)x + 1 = \(\frac{7}{8}\)
\(\frac{3}{8}.\)x = \(\frac{7}{8}-1\)
x = \(-\frac{1}{8}\): \(\frac{3}{8}\)
x = \(-\frac{1}{3}\)
b. 2012 : x + 23 = 526
2012 : x = 526 - 23
x = 2012 : 503
x = 4
