Divide by 3: $ x = 14 $.
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- Total voltage: $ x + (2x + 3) = 45 $.
- Simplify: $ 3x + 3 = 45 $.
- Subtract 3: $ 3x = 42 $.
- The museum curator is preparing a digital exhibit on early computing devices. She finds that the number of vacuum tubes in ENIAC is 50% more than in EDVAC. If EDVAC had 17,500 tubes, how many vacuum tubes does ENIAC have?
- ENIAC has 50% more than EDVAC: $ 17,500 + 0.5 \times 17,500 = 17,500 + 8,750 = 26,250 $.
- #### 26250
