Question

Solve the following linear equation:7n + 49 = 497

Hint: This is a question of linear equation in one variable and we know that linear equations in one variable are those equations which can be written in the form ax+b=0 as you can see in this question but going back to the basics, equation is a combination of constants, variables and operators. So coming back to this question we find out that we are given a constant, variable and operator and this equation is in the form ax+b=0 so we can say this is a linear equation in one variable. Also we can solve this using a simple method involving simple operations of subtraction and division.

$\Rightarrow$ 7n + 49 = 497
$\Rightarrow$ 7n = 497 - 49
$\Rightarrow$ 7n = 448
$\Rightarrow$ n = $\dfrac{{448}}{7}$
$\Rightarrow$ n = 64