High School

If you add 7 to twice a number, the result is 15. Form an equation and find the solution.

Equation: [tex]2x + 7 = 15[/tex]

Solution:
Subtract 7 from both sides:
[tex]2x = 15 - 7[/tex]
[tex]2x = 8[/tex]

Divide both sides by 2:
[tex]x = \frac{8}{2}[/tex]
[tex]x = 4[/tex]

Answer :

Final answer:

To find the solution, we can form and solve the equation 2x + 7 = 15, where x is the unknown number. The solution is x = 4.

Explanation:

To solving equation, we can let x represent the number. The equation based on the given information would be: 2x + 7 = 15. By solving this equation step-by-step, we can find the solution. First, we subtract 7 from both sides of the equation: 2x = 15 - 7 = 8. Then, we divide both sides of the equation by 2 to isolate x: x = 8/2 = 4.

Learn more about Solving Equations here:

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