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Sagot :
First, transpose 7 from the left to the other side..
So, it goes like this...
x= 7 + 7
The -7 became positive because once you transpose a number, the sign will change (example: negative becomes positive and positive becomes negative once you transpose it)
Then add...
x = 14
Check:
x - 7 = 7
Substitute the x...
14 - 7 = 7; Correct
So, it goes like this...
x= 7 + 7
The -7 became positive because once you transpose a number, the sign will change (example: negative becomes positive and positive becomes negative once you transpose it)
Then add...
x = 14
Check:
x - 7 = 7
Substitute the x...
14 - 7 = 7; Correct
Were going to tranpose it. X-7 equals 7
Move the negative 7 to the other side, remember, every time you move. Your going to change the sign. So it will be X equals 7+7 which is 14. So the answer is 14, check. Replace the x with 14. So it will be 14-7 equals 7. Which is true!
Move the negative 7 to the other side, remember, every time you move. Your going to change the sign. So it will be X equals 7+7 which is 14. So the answer is 14, check. Replace the x with 14. So it will be 14-7 equals 7. Which is true!
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