1.) 2a=10 2.) 2a+10=20 3.) 5a=2a+15 4.) 5a-1=14 5.) 7a+5=10+2a tolong jawab pake caranya *secepatnya,kalo mau jawab jgn satu satu ya makasih.*

1.
[tex]2a = 10 \\ a = \frac{10}{2} \\ a = 5[/tex]
2.
[tex]2a + 10 = 20 \\ 2a = 20 - 10 \\ 2a = 10 \\ a = \frac{10}{2} \\ a = 5[/tex]
3.
[tex]5a = 2a + 15 \\ 5a - 2a = 15 \\ 3a = 15 \\ a = \frac{15}{3} \\ a = 5[/tex]
4.
[tex]5a - 1 = 14 \\ 5a = 14 + 1 \\ 5a = 15 \\ a = \frac{15}{5} \\ a = 3[/tex]

5.
[tex]7a + 5 = 10 + 2a \\ 7a - 2a = 10 - 5 \\ 5a = 5 \\ a = \frac{5}{5} \\ a = 1[/tex]