Question

Solve the equation : $8x+6+2x-4=80$

• A. 0
• B. 7.8
• C. 78
• D. 80

Answer 1

The correct option is B

7.8

Given $8x+6+2x-4=80$
[rearranging the terms]
$=8x+2x+6-4=80$
$=10x+2=80$
$\Rightarrow 10x=78$
[dividing each term by 10]
$=x=\frac{78}{10}=7.8$