Question

Find the value of x. Show your steps
Step 1 (8x+9)°+99°

Answer 1

Answer: x = 9

Explanation:

Hello

To find the value of x, we have to do the following.

Step 1: (8x+9)°+99° = 180°

Step 2: 8x + 108° = 180

Step 3: 8x + (108° - 108°) = (180° - 108°)

Step 4: 8x = 72°

Step 5: (8x/8) = (72/8)

Step 6: x = 9.

Now that we have x, we can enter our equation again:

(8x+9)°+99° = 180°

[8(9) + 9] + 99 = 180°

(72 + 9) + 99 = 180°

81 + 99 = 180°. True.

Hope this helps