Work out the value of x
​

A full circle is 360°.

x + 3x + 90° = 360°

4x = 360° - 90°

4x = 270°

4x/4 = 270°/4

x = 67.5°

Hope it helps! Make me brainliest if it’s correct.

Hey!

Alright, let's take a look at this problem.
The first step would be to rearrange the equation. To do that we will group the like elements.

Original Equation :
7x - 8 - 3x - 4

New Equation {Changed by Grouping Like Elements} :
7x - 3x - 4 - 8

Next, we'll add both the 7x and 3x since they both contain variables.

Old Equation :
7x - 3x - 4 - 8

New Equation {Changed by Adding Similar Elements} :
4x - 4 - 8

Again, we'll add the other similar elements in the equation.

Old Equation :
4x - 4 - 8

New Equation {Changed by Adding Similar Elements} :
4x - 12

Our equation can no longer be simplified any farther, so we have our final answer.

The equation 7x - 8 - 3x - 4 simplified is  4x - 12.

Hope this helps!

- Lindsey Frazier ♥