Answer:
X = 3
Step-by-step explanation:
3x + 4x - 12 = - 10x + 30 + 9
7x - 12 = - 10x + 39
7x + 10x = 12 + 39
17x = 51
x = 3
1/5(9times) would be your answer man!!!
Answer: Yes thats right
Step-by-step explanation: I took the quiz