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23-04-2020
Mathematics

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x+4x+30=80

find value of x

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23-04-2020

Answer:

x = 10

Step-by-step explanation:

Add like terms:

x + 4x + 30 = 80

5x + 30 = 80

Then, subtract 30 from both sides:

5x + 30 = 80

-30 -30

__________

5x = 50

Finally divide both sides by 5:

5x = 50

x = 10

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