An integer decreases by 6 to become twice the integer minus 10. Find the integer.
Answer
4
The correct answer is 4 — Step 8: Conclude the integer is 4.
Step-by-step solution
- Step 1: Let the integer be .
- Step 2: Decrease by 6 gives .
- Step 3: Set this equal to twice the integer minus 10: .
- Step 4: Move to one side: .
- Step 5: Simplify left side: .
- Step 6: Add to both sides: .
- Step 7: Add 10 to both sides: .
- Step 8: Conclude the integer is 4.
Common mistake: Misplacing the negative sign while transposing terms.
Concept tested: Solving integer equations
Published · How this solution was prepared and checked
← All Integers questions