Answer:
To make it easier, I'm gonna label each angle. Let's say that the angle you already know is angle A.
Angle A: 42
Angle B: 138
Angle C: 42
Angle D: 138
Step-by-step explanation:
If this isn't the kind of answer you needed, let me know.
0
-7+1+ -1 * -6
Using PEMDAS, we multiply and divide first
-1*-6 = 6
Then we add and subtract from left to right
-7+1+ 6
-6+6 =0
