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3 years ago

Need help Please Solve: 5(2j+3+j)

Mathematics

1 answer:

kirza4 [7]3 years ago

5 0

Answer:15j+15

Step-by-step explanation:

First you do 5*2j and 5*3 and 5*j which is also 5*1j

Then you get 10j+15+5j

Then you add 10 and 5 j since they are like terms and then you get 15j+15

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{ y = - 4x-23-4x-3y=13

sleet_krkn [62]

For this case we have the following system of equations:

$y = -4x-23\\-4x-3y = 13$

We solve by the substitution method:

We substitute the first equation in the second equation:

$-4x-3 (-4x-23) = 13$

We apply distributive property considering that $- * - = +:$

$-4x + 12x + 69 = 13\\8x + 69 = 13$

We subtract 69 from both sides of the equation:

$8x = 13-69\\8x = -56$

We divide by 8 on both sides of the equation:

$x = \frac {-56} {8}\\x = -7$

We look for the value of the variable y:

$y = -4 (-7) -23\\y = 28-23\\y = 5$

Thus, the solution of the system is $(x, y): (-7,5)$

Answer:

$(x, y): (-7,5)$

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4 years ago

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MrRissso [65]

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3 years ago

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Maksim231197 [3]

Answer:

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Step-by-step explanation:

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4 years ago

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An architectural drawing of a building shows the elevation of the basement floor to be –10 feet. The elevation of the roof is 40

m_a_m_a [10]

50 feet

It is 10 feet from -10ft to 0ft, plus 40ft to the roof.

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3 years ago

Find the distance between (3,7) and (6,5)

zubka84 [21]

Answer:

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Step-by-step

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