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nydimaria [60]
2 years ago
14

Hello, i need some help, thanks <3​

Mathematics
2 answers:
Softa [21]2 years ago
8 0

Answer:

Step-by-step explanation:

The whole thing is wrong

31 - 12 = x

X = 19

Hope this helped thanks.

OleMash [197]2 years ago
6 0

Answer:

Melody added 12 to both sides when she should've subtracted 12 from both sides.

X = 19

Step-by-step explanation:

When solving equations, you have to do the opposite operation given on both sides of the equation. In this case, the operation that's happening is addition, so we have to <u>subtract</u> 12 from both sides.

Step 1: Subtract 12 from both sides.

  • x+12-12=31-12
  • x = 19
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igor_vitrenko [27]

Donald earns $23 each weekend and Mickey earns $30.

Step-by-step explanation:

Given,

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Let,

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Putting value of x from Eqn 2 in Eqn 1

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Dividing both sides by 2

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Putting y=23 in Eqn 2

x=23+7\\x=30

Donald earns $23 each weekend and Mickey earns $30.

Keywords: linear equation, substitution method

Learn more about linear equations at:

  • brainly.com/question/10990024
  • brainly.com/question/11007572

#LearnwithBrainly

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Can I have brainliest please, if not that's ok. :)

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