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1 vote
What is X in this equation?
3x+55=9x-5

Please Explain.​

User BNK
by
5.2k points

2 Answers

7 votes

Answer:

x=10

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\\(-6x)/(-6)=(-60)/(-6)


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

I hope this helps you out!

Have a wonderful afternoon!

User Quy Le
by
5.3k points
5 votes

Answer:

x = 10

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

User Kazuwombat
by
4.5k points