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Here is the problem: Three times a number plus 5 equals 26.

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Let x be the number: “3 times a number plus 5” becomes (3) times x plus 5.

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Read the problem. Let x be the unknown number. “3 times a number plus 5 is 26” translates to (3) times x plus 5 equals 26.

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Solve the linear equation. 3x plus 5 equals 26 → x equals (26 minus 5) / 3 equals 7.

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So the answer is The number is 7.

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Let x be the number: “3 times a number plus 5” becomes (3) times x plus 5.

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Substitute x equals 7: (3) times (7) plus 5 equals 26, which checks out.