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Eddi Din [679]
3 years ago
8

Combine like terms:12x + 3y + 4 - 6y - 9​

Mathematics
2 answers:
wolverine [178]3 years ago
5 0

Answer:

12x - 3y - 5

Step-by-step explanation:

12x + 3y + 4 - 6y - 9 | Given

12x - 3y + 4 - 9 | Subtract 6y from 3y. It becomes -3y.

12x - 3y - 5 | Add +4 and -9 to get -5.

dimaraw [331]3 years ago
4 0

Answer:

12x-3y-5

Step-by-step explanation:

3y-6y=-3y

4-9=-5

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in pennsylvania the percent of sales tax is 6%, what is the sales tax on a skateboard that costs $98?
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2 years ago
12x +10+3+8x ? What do I have to do ?
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Simplifying

12x + 10 + 3 + 8x = 0

Reorder the terms:

10 + 3 + 12x + 8x = 0

Combine like terms: 10 + 3 = 13

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Combine like terms: 12x + 8x = 20x

13 + 20x = 0

Solving

13 + 20x = 0

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Add '-13' to each side of the equation.

13 + -13 + 20x = 0 + -13

Combine like terms: 13 + -13 = 0

0 + 20x = 0 + -13

20x = 0 + -13

Combine like terms: 0 + -13 = -13

20x = -13

Divide each side by '20'.

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Simplifying

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