Since we know a triangle only has 180 degrees we can say:
99+3x+x+5=180
Then we can solve for x:
4x+104=180
4x=76
x=19
Answer:
pretty sure its,100
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
1.Move the constant to the right
2. Calculate
3. Divide both sides
Aida did not correctly divide by the common factor to get (4+8).
