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3 years ago

2x + 3(5x - 7) = 47 Please show steps

Mathematics

2 answers:

Marianna [84]3 years ago

6 0

Answer:

x = 4.

Step-by-step explanation:

2x + 3(5x - 7) = 47

2x + 15x - 21 = 47

17x - 21 = 47

17x = 68

x = 68/17

x = 4.

Softa [21]3 years ago

3 0

Answer:

x = 4

Step-by-step explanation:

2x + 3(5x - 7) = 47

⇔ 2x + 15x - 21 = 47

⇔ 17x - 21 = 47

⇔ 17x = 47+21

⇔ 17x = 68

⇔ x = 68/17

⇔ x = 68÷17 = 4

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2 years ago

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Paraphin [41]

Answer:

Step-by-step explanation:

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$\frac{392}{7}=56 mph$

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3 years ago

Whate is answer of 36-[100÷5{60-32(8÷4-1)}]

svet-max [94.6K]

Answer:

$67\frac{23}{28}$

Step-by-step explanation:

$36-\left[100\div \:560-32\left(8\div \:4-1\right)\right]\\\\100\div \:560-32\left(8\div \:4-1\right)\\\\=100\div \:560-32\cdot \:1\\\\=\frac{100}{560}-32\cdot \:1\\\\=\frac{100}{560}-32\\\\=-\frac{891}{28}\\\\\\=36-\left(-\frac{891}{28}\right)\\\\36-\left(-\frac{891}{28}\right)\\\\=36+\frac{891}{28}\\\\\frac{36\cdot \:28}{28}+\frac{891}{28}\\\\\frac{36\cdot \:28+891}{28}\\\\=\frac{1899}{28}\\\\\\\frac{1899}{28}(1899\div28)=67\frac{23}{28}$

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2 years ago

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tino4ka555 [31]

Answer:

Yes

Step-by-step explanation:

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3 years ago

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Ede4ka [16]

Answer:

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Step-by-step explanation:

(10^2)(10^3)

=10^2*10^3

=(10*10)*(10*10*10)

=10*10*10*10*10

=105

=100000

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3 years ago