Question 641518
1) 

{{{3y+16=22}}}

{{{3y=22-16}}}

{{{3y=6}}}

{{{y=6/3}}}

{{{y=2}}}

2)

{{{4x+7=9x-13}}}

{{{13+7=9x-4x}}}

{{{20=5x}}}

{{{20/5=x}}}

{{{4=x}}}


3)

{{{-7x=15-2x}}}

{{{-15=7x-2x}}}

{{{-15=5x}}}

{{{-15/5=x}}}

{{{-3=x}}}

4)

{{{24-(x/3)=6}}}

{{{24-6=x/3}}}

{{{18=x/3}}}

{{{18*3=x}}}

{{{54=x}}}

5)

{{{(2/3)x-(1/4)=(1/6)x-(1/9)}}}

{{{(2/3)x-(1/6)x=(1/4)-(1/9)}}}

{{{((2*2-1*1)/6)x=(1*9-1*4)/36}}}

{{{((4-1)/6)x=(9-4)/36}}}

{{{(3/6)x=5/36}}}

{{{(cross(3)1/cross(6)2)x=5/36}}}

{{{x/2=5/36}}}

{{{x=(5/36)2}}}

{{{x=(5/cross(36)18)cross(2)1}}}

{{{x=5/18}}}

{{{x=0.28}}}