How many solutions does the system have?2y=4x+6 y=2x+6

there is no solutions.

Step-by-step explanation:

replace y in 2y=4x+6 with 2x+6

2 (2x+6) = 4x+6

mulitply the terms

4x+12=4x+6

subtract 4x from both sides or the equal sign.

the answer is 12=6 which is not equal to each other

there's not solutions.