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If 20=r+1120=r+11, what is the value of rr?

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Q. If 20=r+1120=r+11, what is the value of rr?
  1. Isolate r in equation: To find the value of r, we need to isolate r on one side of the equation. We start with the equation 20=r+1120 = r + 11. Subtract 1111 from both sides of the equation to isolate r. 2011=r+111120 - 11 = r + 11 - 11
  2. Subtract 1111: After performing the subtraction, we get:\newline9=r9 = r\newlineThis gives us the value of rr.

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