Question

Find the value of x for which the value of the expressions \(2x + 2\) and $\frac{2}{5}(x+7)$ are equal.

• A. 1
• B. 4
• C. 0.25
• D. 0.5

Answer 1

The correct option is D 0.5

The value of x for which both the expressions are equal is the solution of the equation.

2x + 2 = $\frac{2}{5}$(x + 7)

Cross multiplying,

$\Rightarrow$ 10x + 10 = 2x + 14

$\Rightarrow$ 10x - 2x = 14 - 10

$\Rightarrow$ 8x = 4
$\Rightarrow$ x = 0.5