The equality used is Subtraction property of equality
Option A is correct
Step-by-step explanation:
We need to identify which option best explains or justifies Step 1.
Step 1 is: 
The given equation is: 
To get the equation for step 1 we need to subtract c on both sides of equation i.e using subtraction property of equality


So, The equality used is Subtraction property of equality
Option A is correct.
Keywords: Solving Quadratic Equations
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Answer:
I think you forgot the context or image of that.
Answer:
8
Step-by-step explanation:
Answer:
I think it’s C
Step-by-step explanation:
Answer:x=26
Step-by-step explanation: