Answer:
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Step-by-step explanation:
Answer:
The last answer; 12.
Step-by-step explanation:
In order to solve this, use substitution. Since it gives you an equation for y, substitute that equation in the other formula as y. This will give you:
Then simplify:
Since 6x - 6x cancels out, you are left with 12.

Answer: 5x + 32
Step-by-step explanation:
It's already in the simplest form.
Answer:d
Step-by-step explanation:
16-4=12 and 16+4=20