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14-06-2021
Mathematics

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-3x+20+7x=80 what is x? and how do I get it?

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14-06-2021

Answer:

x = 15

Step-by-step explanation:

-3x+20+7x=80

Combine like terms

4x+20 = 80

Subtract 20 from each side

4x+20 -20 = 80-20

4x = 60

Divide by 4

4x/4 = 60/4

x = 15

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