What is $x$ $x$ in the equation $7 x + 8 = 36$ $7x + 8 = 36$ ?

Question

3796 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-04-08T07:10:04

see below

We have, $7 x + 8 = 36$ $7x+8=36$
Or, $7 x = 36 - 8$ $7x=36-8$
Or, $x = 28 / 7$ $x=28//7$
Thus, $x$ $x$ comes out as $4$ $4$ .

Answer 2 · 2018-04-08T07:46:19

$x = 4$ $x=4$

In order to find the value of $x$ $x$ , you have to isolate the $x$ $x$ -term on the left.

$7 x + 8 = 36$ $color(blue)(7x) + 8 = 36$

Subtract $8$ $8$ from both sides of the equation.

$7 x + 8 - 8 = 36 - 8$ $color(blue)(7x) + 8 color(magenta)(-8) = 36 color(magenta)(-8)$

$7 x = 28$ $" "color(blue)(7x) = 28$

Now divide both sides by $7$ $7$ to get just $x$ $x$ on the left.

$\frac{7 x}{7} = \frac{28}{7}$ $" "color(blue)(7x)/7 = 28/7$

$x = 4$ $" "color(blue)(x) = 4$

What is xxx in the equation 7x + 8 = 367x+8=367x + 8 = 36?