Evaluate the following expressions at given value of the variable $.$
$45 x - 70$ when $x = 5$

Open in App

Solution

We want to find out the value of the expression $45 x - 70$ when $x = 5$
Put the value of $x = 5$ in the given expression $.$
$= 45 x - 70$
$= 45 \times 5 - 70$
$= 225 - 70$
$= 155$
Hence $,$ the value of $45 x - 70$ when $x = 5$ is $155$

Suggest Corrections

Similar questions

Evaluate the following expressions at given value of the variable $.$

$11 p + 7$ when $p = 100$

Evaluate the following expressions at given value of the variable $.$

$23 - 4 r$ when $r = 3$

Evaluate the following expressions at given value of the variable $.$

$33 y + 20$ when $y = 4$

Evaluate the expression when $x = - \frac{4}{5} a n d y = \frac{1}{3}$

$2 x + 6 y$

Evaluate the expression when $x = 4, y = - 6$ and $z = - 3$

$y \div z$

Join BYJU'S Learning Program