Answer:x=30*
Step-by-step explanation:
90*+30*=120*
*All triangles’ angles = 180*
180*-120*=60*
60*/2=30*
Answer

Step by step explanation

Add the numbers
⇒
Move constant to right hand side and change it's sign
⇒
Calculate the difference
⇒
Hope I helped!
Best regards!!
Well you have to 1
1. Multiply 2*2-1
2. Add answers
3. Add 15
4. There is ur answer which is 15
Answer:
C
Step-by-step explanation: