Question

Tìm x, biết:\(\left(4x-3\right)-\left(x+5\right)=3\left(10-x\right)\)

Answer 1

(4x - 3) - (x + 5) = 3(10 - x)

<=> 4x - 3 - x - 5 = 30 - 3x

<=> 4x -x + 3x = 3 + 5 + 30

<=> 6x = 38

<=> x = 19/3

Answer 2

\(\left(4x-3\right)-\left(x+5\right)=3\left(10-x\right)\)

           \(4x-3-x-5=30-3x\)

                            \(3x-8=30-3x\)

                         \(3x+3x=30+8\)

                                    \(6x=38\)

                                       \(x=\frac{19}{3}\)

Answer 3

\(\left(4x-3\right)-\left(x+5\right)=3\left(10-x\right)\)

\(\Leftrightarrow4x-3-x-5=30-3x\)

\(\Leftrightarrow4x-x+3x=30+3+5\)

\(\Leftrightarrow6x=38\)

\(\Leftrightarrow x=\frac{38}{6}\)

\(\Leftrightarrow x=\frac{19}{3}\)