If (2,r) is a solution to the equation 2x+r=7
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Hello !
Well, here you need just to replace the letter (x) for 2 and if you make it you have the solution of the unknown value (r) see the resolution in the practice.
2x + r = 7
2(2) + r = 7
4 + r = 7
r = 7 - 4
r = 3
Therefore, we have that the solution of the unknown value of (r) is 3. So, we have that (2,r) = (2,3).
I hope I have collaborated !
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