Question

Cho mình bài giải của bài này 

(X-3)-3(x-5)=4(3-x)-18

Giải cho mình gấp nhé

Answer 1

(x - 3) - 3(x - 5) = 4(3 - x) - 18

<=> -2x + 12 = -4x - 6

<=> -2x = -4x - 6 - 12

<=> -2x = -4x - 18

<=> -2x = -4x - 18 + 4x

<=> -2x = -18

=> x = -9

Answer 2

<=> x-3-(3x-15)=12-4x-18

<=> x-3-3x+15=12-4x-18

<=> x-3x+4x=3-18-15

<=> 2x=-30

<=> x=-15

Answer 3

\(\left(x-3\right)-3\left(x-5\right)=4\left(3-x\right)-18\)

\(\Rightarrow\left(x-3\right)-4\left(3-x\right)-3\left(x-5\right)=-18\)

\(\Rightarrow5x-15-3x+15=-18\)

\(\Rightarrow2x=-18\)

\(\Rightarrow x=-9\)

Answer 4

\(\left(x-3\right)-3\left(x-5\right)=4\left(3-x\right)-18\)

\(\Leftrightarrow x-3-3x+15=12-4x-18\)

\(\Leftrightarrow\left(x-3x\right)+\left(15-3\right)=\left(12-18\right)-4x\)

\(\Leftrightarrow-2x+12=-6+4x\)

\(\Leftrightarrow-2x-4x=-6-12\)

\(\Leftrightarrow-6x=-18\)

\(\Leftrightarrow x=-18\div\left(-6\right)\)

\(\Leftrightarrow x=3\)

\(\text{Vậy }x=3\)