If you take a number, times by 3 then subtract 6. You get the same as if you took the number, times by 7 then subtract 2. What is the number?
Answers
Answer:
-1
Step-by-step explanation:
TAKE NUMBER AS Y
3Y - 6 = 7Y - 2
4Y = -4
Y= -1
Answer: The number is -1
Step-by-step explanation:
We have to look at this question line by line, interpret each line and solve the question step by step.
Line 1: Take a number
Let the number be any letter of your choice, I'm going with x
Line 2: Times by 3
This means;
x*3 which is 3x
Line 3: Subtract 6
This means; 3x minus 6
3x-6
Line 4: You get the same as
This means equal to
∴ 3x-6=
Line 5: Take the number and times it by 7
[The number:] x*7=7x
3x-6=7x...
Line 6: Subtract 2
3x-6=7x-2
Now, we have fully interpreted the question, we now solve mathematically;
Collect like terms, (7x and 3x) and (-6 and -2)
3x - 7x = 6 - 2
-4x=4
Divide both sides by -4
(-4x ÷ -4) = (4 ÷ -4)
x=-1
Therefore, the number is -1
I hope this helped =)