[tex]\text {Hey! Let's Solve this Problem!}[/tex]
[tex]\text {\underline {The First Step is to Simplify}}[/tex]
[tex]\text {3*a=3a \rightarrow {3*4=12}}[/tex][tex]\text {3*a=3a}\\\text {3*4=12}[/tex]
[tex]\text {-5*a=-5a}\\\text {-5*-2=10}[/tex]
[tex]\text {Your New Problem Is: 3a+12+-5a+10=22}[/tex]
[tex]\text {\underline {The Next Step is to Combine Like Terms}}[/tex]
[tex]\text {3a+-5a=-2a}\\\text {12+10=22}[/tex]
[tex]\text {Your New Problem Is: -2a+22=22}[/tex]
[tex]\text {\underline {The Next Step is to Subtract 22}}[/tex]
[tex]\text {-2a+22-22=22-22}[/tex]
[tex]\text {Your New Problem Is: -2a=0}[/tex]
[tex]\text {\underline {The Final Step is to Divide 2}}[/tex]
[tex]\text {-2a/2=0/2}[/tex]
[tex]\text {Your Answer Would Be:}[/tex]
[tex]\huge\boxed {a=0}[/tex]
[tex]\text {Best of Luck!}[/tex]
