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3 years ago

9) Three times a number added to 12 gives -6. Find the number.

Mathematics

2 answers:

KatRina [158]3 years ago

7 0

Answer:

The number is -6.

Step-by-step explanation:

Variable x = a number

Set up an equation:

3x + 12 = -6

Isolate variable x:

3x = -18

x = -6

Check your work:

3(-6) + 12 = -6

-18 + 12 = -6

-6 = -6

Correct!

Rudik [331]3 years ago

4 0

Answer:

3x +12=-6

3x=-6-12

3x=-18

x=-18/3

x=-6

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3 years ago

9) Three times a number added to 12 gives -6. Find the number.​

9) Three times a number added to 12 gives -6. Find the number.