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serious [3.7K]
3 years ago
5

Write the following as an algebraic equation. Use x as the unknov

Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Answer:

The unknown value of x is 6.6

Step-by-step explanation:

38.9 + x = 45.5

x = 45.5 - 38.9

x = 6.6

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pav-90 [236]

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: -c = ax^2 + bx

The given equation is: 0 = ax^2 + bx + c

To get the equation for step 1 we need to subtract c on both sides of equation i.e using subtraction property of equality

0-c = ax^2 + bx + c-c

-c = ax^2 + bx

So, The equality used is Subtraction property of equality

Option A is correct.

Keywords: Solving Quadratic Equations

Learn more about Solving Quadratic Equations at:

  • brainly.com/question/4460262
  • brainly.com/question/7361044
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#learnwithBrainly

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