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Wewaii [24]
3 years ago
8

What is X in this equation? 3x+55=9x-5Please Explain.​

Mathematics
2 answers:
Inessa [10]3 years ago
5 0

Answer:

x=10

Step-by-step explanation:

\mathrm{Subtract\:}55\mathrm{\:from\:both\:sides}\\3x+55-55=9x-5-55

\mathrm{Simplify}\\3x=9x-60

\mathrm{Subtract\:}9x\mathrm{\:from\:both\:sides}\\3x-9x=9x-60-9x

\mathrm{Simplify\:}again\\-6x=-60

\mathrm{Divide\:both\:sides\:by\:}-6\\\frac{-6x}{-6}=\frac{-60}{-6}

\mathrm{\:Simplify\:one\:more\:time}\\x=10

I hope this helps you out!

Have a wonderful afternoon!

klasskru [66]3 years ago
3 0

Answer:

x = 10

Step-by-step explanation:

3x + 55 = 9x - 5  (add 5 to both sides)

3x + 55 + 5 = 9x - 5 + 5

3x + 60 = 9x  (subtract 3x from both sides)

60 = 9x - 3x

60 = 6x (rearrange)

6x = 60   (divide both sides by 6)

x = 60/6

x = 10

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