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Which expression is equivalent to 
99.7-(-57.9) ?

99.7-57.9

57.9-99.7

-57.9-99.7

99.7+57.9

Which expression is equivalent to 99.7(57.9) 99.7-(-57.9) ?\newline99.757.9 99.7-57.9 \newline57.999.7 57.9-99.7 \newline57.999.7 -57.9-99.7 \newline99.7+57.9 99.7+57.9

Full solution

Q. Which expression is equivalent to 99.7(57.9) 99.7-(-57.9) ?\newline99.757.9 99.7-57.9 \newline57.999.7 57.9-99.7 \newline57.999.7 -57.9-99.7 \newline99.7+57.9 99.7+57.9
  1. Understand the problem: Understand the problem.\newlineWe need to find an expression equivalent to 99.7(57.9)99.7 - (-57.9). This involves understanding how to handle subtraction of a negative number.
  2. Apply the rule: Apply the rule for subtracting a negative number.\newlineSubtracting a negative number is the same as adding its positive counterpart. Therefore, 99.7(57.9)99.7 - (-57.9) is equivalent to 99.7+57.999.7 + 57.9.
  3. Check the given options: Check the given options to find the equivalent expression.\newlineWe have determined that 99.7(57.9)99.7 - (-57.9) is equivalent to 99.7+57.999.7 + 57.9. Now we need to check the given options to see which one matches our result.\newlineOption 11: 99.757.999.7 - 57.9 (This is not equivalent because it represents subtraction, not addition.)\newlineOption 22: 57.999.757.9 - 99.7 (This is not equivalent because it represents subtraction in the reverse order.)\newlineOption 33: 57.999.7-57.9 - 99.7 (This is not equivalent because it represents adding a negative to a negative.)\newlineOption 44: 99.7+57.999.7 + 57.9 (This is equivalent because it correctly represents adding the positive counterpart of 57.9-57.9 to 99.799.7.)

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