Answer:
[tex]\bold{Both \ Sides \ Are \ Equal, \ True \ For \ All \ "a"}[/tex]
Step-by-step explanation:
Group Like Terms
[tex]\bold{a+2a+3=-1+3a+4}[/tex]
Combine Similar Elements: [tex]\bold{a+2a=3a}[/tex]
[tex]\bold{3a+3=-1+3a+4}[/tex]
Group Similar Terms
[tex]\bold{3a+3=3a-1+4}[/tex]
Add: [tex]\bold{-1+4=3}[/tex]
[tex]\bold{3a+3=3a+3}[/tex]
Subtract 3 From Both Sides
[tex]\bold{3a+3-3=3a+3-3}[/tex]
Simplify
[tex]\bold{3a=3a}[/tex]
Subtract 3a From Both Sides
[tex]\bold{3a-3a=3a-3a}[/tex]
Simplify
[tex]\bold{0=0}[/tex]
