Set 12: Linear Equations (Intermediate)
Explanation
Solve for :
-27
35
97
27
Detailed Explanation
Choice D is correct. Choice C is the correct answer. This addition equation requires subtraction to isolate . 1. Start with the equation: 2. Subtract 35 from both sides: 3. Calculate: 4. Verify: ✓ This reinforces the fundamental concept that subtraction undoes addition. Choice D is incorrect because this results from adding instead of subtracting: . This is the opposite of what we need. Choice A is incorrect because this confuses the constant (35) with the solution. Seeing 35 in the equation doesn't mean . Choice C is incorrect because this is the negative of the correct answer. Perhaps from incorrectly calculating (reversing the subtraction order).
Key Steps:
The correct answer is 27
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