Answer:
x=12.5 to the nearest tenth
Step-by-step explanation:
We want to solve for x in
[tex]7x + 3.350 = 91[/tex]
This is a linear equation in x.
We subtract 3.350 from both sides to get:
[tex]7x = 91 - 3.350[/tex]
We simplify on the right to get:
[tex]7x = 87.65[/tex]
Divide both sides by 7 to get:
[tex]x = \frac{87.65}{7} [/tex]
This implies that
[tex]x = 12.5[/tex]