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Vika [28.1K]
3 years ago
10

Solve for x.

Mathematics
2 answers:
Lunna [17]3 years ago
7 0
8 - 3x - x = 12
8 - 2x = 12
-2x = 12 - 8
-2x = 4
x = -2
AleksAgata [21]3 years ago
3 0
4/-4 is simplified to -1 so the answer is x= -1, C
I think...
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Further explanation:

Given

Let x be the number of $1 bills

and

y be the number of $5 bills

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From first equation:

x+y=15\\x=15-y

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Keywords: Linear equations, Substitution method

Learn more about linear equations at:

  • brainly.com/question/2367554
  • brainly.com/question/2977815

#LearnwithBrainly

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Answer: C

Step-by-step explanation:

I think this one is it?

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