Explain how to solve the equation and then check the solution. 9 = q – 4
Sample Response: Use the inverse operation to isolate the variable. Undo the subtraction of 4 by adding 4 to both sides of the equation. –4 + 4 = 0, and 9 + 4 is 13. The solution is q = 13. Check the solution by substituting 13 for q in the original equation, and then simplify. 13 – 4 is 9 and 9 = 9 is a true statement, so 13 is the solution.

q=13

Step-by-step explanation:

Solve  :    -q+13 = 0  

Subtract  13  from both sides of the equation :  

                     -q = -13

Multiply both sides of the equation by (-1) :  q = 13

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step-by-step explanation: