20 = 3x + 8; x = _____?
- 4
- 5
- 6
- None of these
Explanation
Given the equation 20 = 3x + 8:
Step 1: Subtract 8 from both sides.
20 - 8 = 3x
12 = 3x
Step 2: Divide both sides by 3.
x = 12 / 3
x = 4
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- None of these
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- 16
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- None of these
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- 1/x + 4/(x + 2)
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