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DENIUS [597]
3 years ago
9

7x + 3x − 18 = 6(x + 3)

Mathematics
2 answers:
Tatiana [17]3 years ago
7 0

Answer: x = 9

Step-by-step explanation:

7x + 3x - 18 = 6(x + 3)

10x - 18 = 6(x + 3)                  Add like terms

10x - 18 = 6x + 18                   Distribute 6 to x and 3

4x - 18 = 18                             Subtract 6x to both sides

4x = 36                                  Add 18 to both sides

x = 9                                      Divide 4 to both sides

kaheart [24]3 years ago
4 0

Answer:

x=9

Step-by-step explanation:

7x+3x-18= 6(x+3)

10x-18= 6x+18

4x= 36

x=9

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Answer:

84 adult tickets and 33 child tickets were sold.

Step-by-step explanation:

Given that a school sold 51 less children's tickets than adult tickets for the school play, and adult tickets cost $ 1.25 and children's tickets cost $ 0.75, and a total of $ 129.75 was taken in, to determine how many of each kind were sold the following calculations must be done:

61 x 1.25 + 10 x 0.75 = 83.75

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3 years ago
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Step-by-step explanation:

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