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22 votes
Please no links

Solve -7 + 21 > -14.
A. x<5
B. x< -1
C. x<5
D. x< -1

User Camwhite
by
8.0k points

2 Answers

12 votes

Answer:

X<5

Explanation:

Isolate the term of x from one side of the equation.

-7x+21>-14

First, subtract by 21 from both sides.

-7x+21-21>-14-21

Solve.

Add or subtract the numbers from left to right.

-14-21=-35

Rewrite the problem down.

-7x>-35

Then, multiply by -1 from both sides.


\sf{\left(-7x\right)\left(-1\right) < \left(-35\right)\left(-1\right)}

Solve.

7x<35

Divide by 7 from both sides.

7x/7<35/7

Solve.

Divide the numbers from left to right.

35/7=5

x<5

  • Therefore, the correct answer is x<5.

I hope this helps! Let me know if you have any questions.

User Zimex
by
8.6k points
12 votes

Hey there!


-7x + 21 > -14


SUBTRACT 21 to BOTH SIDES

-7x + 21 - 21 > -14 - 21


SIMPLIFY IT!

NEW EQUATION: -7x > -35


DIVIDE -7 to BOTH SIDES

-7x/-7 > -35/-7


SIMPLIFY IT!


x < 5


Therefore, your answer is: x < 5



Good luck on your assignment & enjoy your day!



~Amphitrite1040:)

Please no links Solve -7 + 21 > -14. A. x<5 B. x< -1 C. x<5 D. x< -1-example-1
User Ariddell
by
7.7k points

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