Three times the difference of a number and 7 is 30. Find the number.
1 answer:
Answer:
<h2>x = 17</h2>
Step-by-step explanation:
3(x - 7) = 30 is our equation, since we take 7 away from the number and then multiply the result by 3.
3x - 21 = 30
Add 21
3x = 51
Divide by 3
x = 17
To check.
3(17 - 7(
3(10)
30 = 30 Correct
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