I'll do one, you can use it as a basis for your answer.
[tex]7x ^{2} + 6 = 13[/tex]
Subtract 6 from both sides to get X by itself.
[tex]7x ^{2} = 7[/tex]
Now we divide by 7 for both sides as well.
[tex]x {}^{2} = 1[/tex]
Now we find the square root of 1 to figure out X.
[tex] \sqrt{1} = 1[/tex]
Therefore, X=1.
my first answer in about a month. hope this helped.
