Answer:
Several equivalent equations are:
[tex]2a-3\times 7=1\\ \\ 2a-21=1\\ \\ 2a=22\\ \\ a=11[/tex]
Explanation:
I will find several equivalent equations assuming the original equation is:
[tex](2/3)a-7=1/3[/tex]
1. Multiply both sides of the equation by 3:
[tex]3\times ((2/3)a-7)=3\times (1/3)[/tex]
[tex]2a-3\times 7=1\\ \\ 2a-21=1[/tex]
2. Add 21 to both sides:
[tex]2a=1+21\\ \\ 2a=22[/tex]
3. Divide both sides by 2:
[tex]a=22/2\\ \\ a=11[/tex]
