You add 70 + 50 then you multiply it by 7.5 and you get, 900 gallons.
Basically, this problem is saying that if you multiply x by 3, then you will get a number that is one less than y. So, if you switch that around a bit, then the problem is saying that if you subtract 3x from y, you'll get 1.
Your final answer should be y - 3x = 1.
Answer:
x = 5
y = 4
Step-by-step explanation:
multiply the second equation by -1 and add the first equation to eliminate "x"
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Replace "y" in the first equation:
Hope this helps
Answer:
5x + 45
Step-by-step explanation:
distribute 5 to both x and 9 so multiply them both
Answer:
a
Step-by-step explanation:
