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alex41 [277]
3 years ago
6

11) Solve for x: 3(7 + 2x) + 3 = 3(5 + x) − 9(x + 1)

Mathematics
2 answers:
Lerok [7]3 years ago
6 0

Answer:

x = -1.5.

Step-by-step explanation:

3(7 + 2x) + 3 = 3(5 + x) − 9(x + 1)

21 + 6x + 3 = 15 + 3x - 9x - 9

6x - 3x + 9x = 15 - 9 - 21 - 3

12x = -18

x = -18/12

x = -1.5.

gogolik [260]3 years ago
5 0

Step-by-step explanation:

3(7 + 2x) + 3 = 3(5+ x) - 9(x + 1)

21 + 6x + 3 = 15 + 3x - 9x - 9

6x + 24 = 6 - 6x

12x = -18

x = -1.5

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3 years ago
3=c/5+2... how do I solve for c??
expeople1 [14]
Primeiro Você IRA Dividir o c (APENAS Colocar 5 + 2 embaixo do c). Depois faça a soma 5 + 2 = 7. Então faça o mmc (mínimo múltiplo comum) entre 7 e 1(o 1 é invisível, mas continua estando embaixo do 3). Deu 7 o mmc. Transforme seus números em frações, com o denominador 7. Transforme os números em frações o 3 virá 21, pois você divide em baixo e multiplica em baixo, e o c continua normal, pois já estava em baixo de 7. Como é para descobrir uma incógnita você tira os denominadores e ficará 21 = c.

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4 0
3 years ago
Read 2 more answers
Mary owned n sheep and Sam had exactly 4 times as many sheep as Mary.
Murljashka [212]

Answer:

least value of n is 9

Step-by-step explanation:

Mary has n sheep. Then she buys 17 extra sheeps.

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Sam = 4n - 8 sheep.

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4n - 8 > n + 17

Collect like terms

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Divide both sides by 3

n > 25/3

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Therefore, least value of n is 9

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a_sh-v [17]
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