Option A is correct. The equivalent expression is −2.1−(5.9+3.7)
Given the expression −2.1+(−5.9)+(−3.7)
Before we can determine the equivalent expression, we need to first know that:
- - × - = +
- + × - = -
- + × + =+
The given expression then becomes;
−2.1+(−5.9)+(−3.7) = -2.1 - 5.9 - 3.7
Factoring out the negative sign from the last two terms;
-2.1 - 5.9 - 3.7 = -2.1 - (5.9 + 3.7)
Hence the equivalent expression is −2.1−(5.9+3.7)
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