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Yuki888 [10]
3 years ago
14

9=7x-13x-21 show step by step

Mathematics
1 answer:
dybincka [34]3 years ago
6 0
First step is to combine like terms. 

9 = 7x - 13x - 21 becomes 9 = - 6x - 21

Now add 21 to both sides to isolate our coefficient and variable. 

- 6x -21 + 21 = 9 + 21

The 21s on the left cancel out. 

- 6x = 30

Now divide both sides by - 6 to isolate the variable. 
x = 30 / - 6
x = - 5
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If their food and beverages costs$25.30 and there is an 8% meals tax, how much is the bill
Mashutka [201]
Hey there Unrazed90,

Answer : 

100% = $25.30
1% = $25.30 / 100
      = $0.253
8% = $0.253 x 8 
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Total = $25.30 + $2.024
         = $27.324
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Hope this helps :D

<em>~Natasha ♥</em>
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3 0
3 years ago
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Mariulka [41]

Answer:

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Step-by-step explanation:

3 0
3 years ago
How to Divide 80 into the given Fractions
Virty [35]
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stepan [7]
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3 years ago
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