Answer:
39 is the answer
Step-by-step explanation:
well so in this is it a little tricky so yea let me see got it right
ANSWER
12
EXPLANATION
Two expressions for the angles in terms of x are given,
The first one is (10x-20)°
The second one is (6x+8)°
The two angles are angles on a straight line.
The sum of angles on a straight line is 180°.
This implies that,

Group similar terms,

Combine like terms:


Therefore the value of x is 12
Figure RST is congruent to figure R'S'T
When solving this equation you get x = -3.
To solve this, simply follow the order of operations for solving.
----> start by dividing both sides by 5
-----> Now you can transform the front side of the equation to use negative exponents.

Since both x and -3 are the powers of x, we can eliminate the 7 and just make the exponents equal.
-3 = x
Answer:
161
Step-by-step explanation: