Solve for x: 9x + 20 = 146.

Answer and explanation

Correct answer: B. 14

  1. Step 1: Subtract 20 from both sides: 9x = 126. Step 2. Divide both sides by 9: x = 14. Answer: 14. Why not the others: 126: Subtracting 20 gives 126, but that still has to be divided by 9. 166: The 20 must be subtracted from both sides, not added. 15: That is one more than the value that satisfies the equation.

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Solve for x: 9x + 20 = 146. | Kenya KCSE Linear equations