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im assuming your equation is 2x + 1 = 7 in this case you need to find what x equals

2x + 1 = 7

2x + 1 - 1 = 7-1

2x = 6

x = 3

put it back into the equation to check if your answer is correct

2(3) + 1 = 7

6 + 1 = 7

7 = 7 Correct!

if your equation is 2x - 1 = 7

x = 4

check it

2(4) - 1 = 7

8 - 1 = 7

7 = 7 Correct!

if your equation is 2x1 = 7

x = 7/2

check it

2(7/2)1 = 7

2(7/2) = 7

2 * 7 / 2 = 7

14/2 = 7

7 = 7 Correct!

hope i got your equation right. if not you can message me on my message board to get more help.

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Q: What is the equation of 2x 1 equals 7?
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