Question

Solve each of the following equation by choosing proper values for the variable in it.

(1) 7x = 14

Answer 1

When x = 1:
7x
$\Rightarrow$7 × 1
= 7

When x = 2:
7x
$\Rightarrow$7 × 2
= 14

Thus, x = 2 satisfies the equation 7x = 14.