Solve for x: 4x - 5 = 15.

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Multiple Choice

Solve for x: 4x - 5 = 15.

Explanation:
To solve for x, you want to isolate the variable. Start by undoing the subtraction on the x-term: add 5 to both sides, giving 4x = 20. Then undo the multiplication by dividing both sides by 4: x = 5. Check by plugging back: 4(5) - 5 = 20 - 5 = 15, which matches. So the value that makes the equation true is 5. If you test other numbers like 4, -5, or 10, the left side doesn’t equal 15 (they produce 11, -25, and 35, respectively).

To solve for x, you want to isolate the variable. Start by undoing the subtraction on the x-term: add 5 to both sides, giving 4x = 20. Then undo the multiplication by dividing both sides by 4: x = 5. Check by plugging back: 4(5) - 5 = 20 - 5 = 15, which matches. So the value that makes the equation true is 5. If you test other numbers like 4, -5, or 10, the left side doesn’t equal 15 (they produce 11, -25, and 35, respectively).

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