Question

The measures of the angles of a triangle are shown in the figure below. Solve for x.

(8x-9)°
63°
70°

Answer 1

To solve for x, set up an equation with the given angles and solve for x.

Step-by-step explanation:

To solve for x, we can use the fact that the sum of the angles in a triangle is always 180 degrees.

We have two known angles: (8x-9)° and 63°.

We can set up an equation: (8x-9) + 63 + x = 180

Simplifying the equation, we have: 9x + 54 = 180

Subtracting 54 from both sides, we get: 9x = 126

Finally, dividing both sides by 9, we find that x = 14.

Answer 2

x= 7

Step-by-step explanation:

Theorem: The sum of the angles of a triangle is 180

Memorize that theorem

8x - 9 + 63 + 70 = 180

8x + 124 = 180

8x = 56

x= 7