Question

What is the value of x? Write your answer as a decimal (8x+32) (12x+19)

Answer 1

Explanation:

These are called VERTICAL ANGLES ( even though they are 'horizontal)

vertical angles are =

8x + 32 = 12 x + 19 subtract 8x and 19 from both sides of the equation

13 = 4x

x = 13/4= 3.25 Done.

Answer 2

3.25

Explanation:

Vertically opposite angles are two angles that are formed when two lines intersect, and they are opposite each other. They are always equal to each other.

By using this:

We can say that:

(8x+32)°=(12x+19)°

Subtract 19 on both sides:

(8x+32-19)°=(12x+19-19)°

(8x+13)°=(12x)°

Subtract 8x on both sides:

(8x+13-8x)°=(12x-8x )°

13° = (4x)°

Divide both sides by 4.

`\sf x =(13)/(4)`

x = 3.25

Therefore, value of x is 3.25.