**2(4x+3)=7x+5**

**Solve the equation above for x. Which of the following is correct?**

1

2

-1

11

*Correct Answer : C*

we follow the order operations to solve for the unknown value of x.

2(4x+3)=7x+5

Open the bracket on the LHS by multiplying each term by 2

(2*4x)+(2*3)=7x+5

8x+6=7x+5

Subtract 6 from both sides

8x+6-6=7x+5-6

8x=7x-1

Subtract 7x on both sides

8x-7x=7x-7x-1

X=-1

Thus, the value of unknown value of x is -1.

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Total time=28+32 =60 minutes

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So, the athlete covers 1 mile in 7.5 minutes.

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### Correct Answer is D

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