Do \(2a-b=8\)
\(\Rightarrow b=2a-8\)
Ta có :
\(b=52,63\%\left(a+b\right)\)
\(\Leftrightarrow2a-8=52,63\%\left(a+2a-8\right)\)
\(\Leftrightarrow2a-8=0,5263\times a+2a\times0,5263-8\times0,5263\)
\(\Leftrightarrow2a-8=0,5263a+1,0526a-4,2104\)
\(\Leftrightarrow2a-0,5263a-1,0526a=8-4,2104\)
\(\Leftrightarrow0,4211a=3,7896\)
\(\Leftrightarrow a=8,999\approx9\)
\(\Rightarrow b=9,999\approx10\)
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