Answer:
Lines 3 and 4
Step-by-step explanation:
ignore this rjrjrjrjrrnrnnrnrrnnr
15x = 5y divide by 3, 3x=y. I believe
First you distribute the six
-138>-36b+42
Then you subtract 42
-180>-36b
Next, you divide by -36 and since you are dividing by a negative, you turn the sign around
5