Respuesta :
(99) + (3x) + (x + 5) = 180 because the always in a triangle must always add up to 180.
Now just have to isolate x:
First add the like terms:
104 + 4x = 180
Subtract 104 on both sides:
4x = 76
Divide by 4:
x = 19
Now just have to isolate x:
First add the like terms:
104 + 4x = 180
Subtract 104 on both sides:
4x = 76
Divide by 4:
x = 19
Answer:
The answer is x=19
Step-by-step explanation:
I took the test. good luck and have a good rest of the day!