Answer:

Step-by-step explanation:
The GCF doesn't have to be a number. In this case, it is -y because both the -2xy and -9y share it. It's also easier when you take out a negative. Once you take the GCF out, your new expression should be:

Answer:
<h2>y = 8</h2>
Step-by-step explanation:


Y = 6x - 6 therefore y - 6x = -6
y - 6x = 5
so:
-6 ≠ 5
There is no solution to this system.
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Answer: 15=10+5
Step-by-step explanation:
Subtract 55 from both sides.
15-5=a
Simplify 15-5 to 10.
10=a
Switch sides.
a=10