Answer :
The expression we have is:
[tex]7+8x=0[/tex]And we need to solve to find the value of x.
Step 1. To solve for x we need to leave the term that contains x alone on one side of the equation. For that reason we will need to subtract 7 to both sides of the equation:
[tex]7-7+8x=0-7[/tex]And as you can see 7-7 on the left side will be 0, so we will be left only with 8x:
[tex]8x=0-7[/tex]and on the right side, 0-7 is equal to -7:
[tex]8x=-7[/tex]Step 2. Now we need to divide both sides of the equation by 8 in order to solve for x:
[tex]\frac{8x}{8}=-\frac{7}{8}[/tex]8/8 on the right side, is equal to 1, so we will be left with x:
[tex]x=-\frac{7}{8}[/tex]And this way we have found the value of x.
Answer:
[tex]x=-\frac{7}{8}[/tex]