Question

This is question of linear equation in one variable.
Answer is 11.
I want full method..
Answer me fast and right method of answer And I will mark you as a brainlist..​

Answer 1

$\rm{6-(a-1)/2-(a-2)/3=(3-a)/4}$

$\longrightarrow\rm{6-6(a-1)/12-4(a-2)/12=3(3-a)/12}$

$\longrightarrow\rm{72/12-6(a-1)/12-4(a-2)/12=3(3-a)/12}$

$\longrightarrow\rm{[72-6(a-1)-4(a-2)]/12=3(3-a)/12}$

$\longrightarrow\rm{[72-6(a-1)-4(a-2)]/12=(9-3a)/12}$

$\longrightarrow\rm{[72-6a+6-4a+8]/12=(9-3a)/12}$

$\longrightarrow\rm{[72+6+8-6a-4a]/12=(9-3a)/12}$

$\longrightarrow\rm{(86-10a)/12=(9-3a)/12}$

$\longrightarrow\rm{(86-10a)/12\times12/1=(9-3a)/12\times12/1}$

$\longrightarrow\rm{86-10a=9-3a}\longrightarrow\rm{86-10a+10a=9-3a+10a}$

$\longrightarrow\rm{86=9-3a+10a}\longrightarrow\rm{86=9+7a}$

$\longrightarrow\rm{7a=86-9}\longrightarrow\rm{7a=77}\longrightarrow\rm{a=77/7=11}$