Solve 2x = 10.

Explanation

• Divide both sides by 2 to keep the equation balanced: x = 10 ÷ 2 = 5.
• Substitute to confirm: 2 × 5 = 10, which matches the right-hand side.
• Whatever operation you apply to one side of a linear equation must be applied to the other side too.
• Option D 10 is simply the number on the right of the equals sign, not the value of x.
• One step solves any equation of the form ax = b, and the answer is always x = b/a.