Answer : A triangle equals 180 degrees.
If you add all of the sides , they should equal 180.
2x + 1X-3 + 7 = 180
After you add the X’s together, and the numbers together (NOT including the 180 after the equal sign) you’ll get the equation.
So , the equation is written like this :
3x+4 = 180
So , from there , you can solve from x.
After you solve for x , replace the x for the actual numbers.
Example :
2x
Instead of the x , insert the number.
And insert the number for x-3
7 doesn’t have an x , so leave it alone
