3x - 7 + 7 = 12 + 7
3x = 19
3x/3 = 19/3
X = 19/3 = 6 1/3
B is your answer because 20 - -10 is 10 brainliest please
Find common factor, in this case the common factor is 10x
So the answer would be 10x(x^6 - y^10)
The answer is C
Step by step explanation
16 ft,30 ft 34ft