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25 votes
9x-3-8x=7-x solve for x

User Darling
by
5.2k points

2 Answers

6 votes

Answer:

x = 5

Explanation:

9x-3-8x=7-x solve for x

9x - 3 - 8 x = 7 - x

x - 3 = 7 - x

2x = 10

x = 10 : 2

x = 5

-----------------

check

9 * 5 - 3 - 8 * 5 = 7 - 5

2 = 2

the answer is good

User Samia Ruponti
by
4.5k points
8 votes

Answer:

x = 5

Explanation:

Simplify both sides :

  • 9x - 3 - 8x = 7 - x
  • x - 3 = 7 - x

Add 3 to each side :

  • x - 3 + 3 = 7 - x + 3
  • x = 10 - x

Add x to each side :

  • x + x = 10 - x + x
  • 2x = 10

Divide by 2 on each side :

  • 2x/2 = 10/2
  • x = 5
User Ninegrid
by
5.3k points