Answer:
x=180-x
2x=180
x=90
Step-by-step explanation:
14 i hope this is what you were looking for
Answer:
x = -1
Step-by-step explanation:
2x + 5x = -7
7x = -7
x = -1
Answer:
There is no solution
Step-by-step explanation:
4x - 2y = 5 --> 4x - 2(2x + 10) = 5
4x - 4x - 20 = 5
4x - 4x -25 = 0
Final answer is -25 = 0 and so therefor it is no solution