140872reke 140872reke

23-05-2020
Mathematics

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solve for x. 7(x+11)=9x-18

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mkarikari1850 mkarikari1850

23-05-2020

Answer:

7(x+11)=9x-18

7x + 77 = 9x - 18

7x - 7x + 77 = 9x - 7x - 18

77 = 2x - 18

18 + 77 = 2x - 18 + 18

95 = 2x

95/2 = 2x/2

x = 47.5

Step-by-step explanation:

1. distribute the bracket

2. subtract 7 from both sides

3. add 18 to both sides

4. divide both sides by 2

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