Solve y = (2/5)x + 2 When x Equals 2: Linear Equation

Question

Find $y$ when $x=2$

$y=\frac{2}{5}x+2$

00:00 Find Y according to the given X value

00:07 Substitute the X value according to the given

00:17 Raise the product to the numerator

00:21 Calculate the product

00:27 Convert from fraction to decimal

00:37 Insert this decimal fraction in the exercise and continue solving

00:47 Let's sum up

00:52 And this is the solution to the question

In this exercise, we are given the value of X, so we will substitute it into the formula.

It's important to remember that between an unknown and a number there is a multiplication sign, therefore:

$y=\frac{2}{5}\cdot(2)+2$

$y=\frac{4}{5}+2$

Let's convert to a decimal fraction:

$y=0.8+2$
$y=2.8$

And that's the solution!

$2.8$