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kobusy [5.1K]
3 years ago
5

Please help me with this

Mathematics
1 answer:
babunello [35]3 years ago
7 0

9514 1404 393

Answer:

  • 1+3x = -89
  • x = -30

Step-by-step explanation:

If we let x represent "a number", then "three times a number" is 3x. The usm of that and 1 is ...

  1 +3x . . . . . . the sum of 1 and 3 times a number

That is said to be -89, so we have the equation ...

  1 +3x = -89

__

To solve this equation, we can subtract 1 from both sides:

  3x = -90

Then we can divide by 3 to find x.

  (3x)/3 = -90/3

  x = -30

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