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Ne4ueva [31]
3 years ago
15

Reason What is a first step to solving for x

Mathematics
2 answers:
Dafna11 [192]3 years ago
6 0

\large \mathfrak{Solution : }

let's solve for x :

first step : adding 7 on both sides

  • 9x - 7 = 10

  • 9x - 7 + 7 = 10 + 7

  • 9x = 17

next step : dividing by 9 on both sides :

  • \dfrac{9x}{9}  =  \dfrac{17}{9}

  • x =  \dfrac{17}{9}

now, let's check for the solution by Plugging the value of x as 17 / 9 in the above equation.

  • 9x - 7 = 10

  • (9 \times  \dfrac{17}{9} ) - 7 = 10

  • 17 - 7 = 10

  • 10 = 10

we can see that the LHS = RHS, therefore our value for x is correct. i.e 17 / 9

Ipatiy [6.2K]3 years ago
3 0

Answer:

Answer: Do -7 + 7 and do the same to 10, (7 + 10). This is the first step in Isolating the variable.

Step-by-step explanation:

hope it's right

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Answer:

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Step-by-step explanation:

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* The distance from the library to the park is 2√5 miles

b.

∵ The distance from the park to the football field represented by BC

* Lets use the rule (BC)² = CD × AC

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∵ AC = 4 + 10 = 14

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