30+18=30+6y
18=6y
y=3 so the answer is 3
The answer would be b because if you substitute 5 in for x y=2x-6 would equal 4 and y=5x-21 would equal 4. I hope this helps!
Answer:
-8f
Step-by-step explanation:
you will substitute in the numbers and multiply
Because f is a variable you write the -8 and attach the f to it
-4 1/8 as decimal.
The decimal is -3.875.
