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If 20=r+11, what is the value of r ?

If 20=r+11 20=r+11 , what is the value of r r ?

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Full solution

Q. If 20=r+11 20=r+11 , what is the value of r r ?
  1. Subtract 1111 from both sides: We are given the equation 20=r+1120 = r + 11. To find the value of rr, we need to isolate rr on one side of the equation. We can do this by subtracting 1111 from both sides of the equation.\newline20−11=r+11−1120 - 11 = r + 11 - 11
  2. Final value of r: After subtracting 1111 from both sides, we get:\newline9=r9 = r\newlineThis gives us the value of rr.

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