Question

\(\frac{x}{2}\)*3 +x * 4 =23,1

Answer 1

\(\frac{x}{2}\cdot3+4x=23,1\)

\(\Leftrightarrow x\cdot\frac{3}{2}+4\cdot x=23,1\)

\(\Leftrightarrow x\left(\frac{3}{2}+4\right)=23,1\)

\(\Leftrightarrow x\cdot\frac{11}{2}=23,1\)

\(\Leftrightarrow x=4,2\)

Answer 2

\(\frac{x}{2}\times3+x\times4=23,1\)

\(\left(\frac{x}{2}\times2\right)\times\left(3:2\right)+x\times4=23,1\)

\(x\times1,5+x\times4=23,1\)

\(x\times\left(1,5+4\right)=23,1\)

\(x\times5,5=23,1\)

\(x=23,1:5,5\)

\(x=4,2\)

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