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The sum of four and seven times a number is -31. What is the number?

2 Answers

3 votes

Answer:

The number is -1.107142857142857

Explanation:

I just used a calculator

User Skyporter
by
8.6k points
2 votes

Answer:

The number is -5

Explanation:

Let x be the number

  1. Write it out as an algebraic expression: 7x + 4 = -31
  2. Subtract 4 from each side, so it now looks like this: 7x = -35
  3. Divide each side by 7 to cancel out the 7 next to x. It should now look like this: x = -5

I hope this helps!

User Vahe Akhsakhalyan
by
7.9k points

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