243 + 62-28 = n
243 + 34 = n
277 = n
n= 277
Answer:
The value of x would be 20
Step-by-step explanation:
To solve this triangle, we need to first note that all triangles have 180 degrees. So we can add these all together and set equal to 180.
40 + 3x + 4x = 180
40 + 7x = 180
7x = 140
x = 20
1. Given
2. Addition property
3. Division property
