madcole264
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Given the equation 5 + x - 12 = x - 7. Part A. Solve the equation 5 + x - 12 = x - 7. In your final answer, be sure to state the solution and include all of your work. Part B. Use the values x = -4, 0, 5 to prove your solution to the equation 5 + x - 12 = x - 7. In your final answer, include all of your calculations.

Respuesta :

irspow
5+x-12=x-7  combine like terms on left side

x+(5-12)=x-7

x-7=x-7 add 7 to both sides

x=x  This is true for all values of x so there are infinitely many solutions.

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5-4-12=-4-7, -11=-11

5+0-12=0-7, -7=-7

5+5-12=5-7, -2=-2

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