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vladimir2022 [97]
3 years ago
7

Solve this equation -129=6(7+7x)-3

Mathematics
2 answers:
leva [86]3 years ago
7 0

Answer:

-4

Step-by-step explanation:

-129 = 6(7 + 7x) - 3

Distribute the 6 into the parentheses.

-129 = 42 + 42x - 3

Add like terms.

-129 = 39 +42x

Subtract 39 from both sides.

-168 = 42x

Divide 42 from both sides.

-4 = x

BlackZzzverrR [31]3 years ago
6 0

Answer:

x = -4

Step-by-step explanation:

6(7 + 7x) - 3 = -129

=>42 + 42x - 3 = -129

=>39 + 42x = -129

=>42x = -129 - 39

=>42x = -168

=>x = -168/42

=>x = -4

HOPE THIS HELPS YOU...

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Answer:

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8 0
3 years ago
Find the domain of the relation represented on the mapping diagram:
salantis [7]
The domain equals all of the x values which are represented on the left in a mapping diagram.

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7 0
3 years ago
n^2-2n-3 where n is the number of key rings in thousands, find the number of key rings sold when the profits is $5,000
ArbitrLikvidat [17]

Answer:

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Step-by-step explanation:

Here the given expression , where: n = Number of key rings in thousands is given as:

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Now, solving the above expression for the value of n, we get:

n^2 -  2 n - 3 = 5\\\implies  n^2  -2n - 8  =  0\\\implies  n^2  -4n +  2n - 8  =  0\\\implies n(n-4)  + 2(n-4)  = 0\\\implies (n-4) (n+2)  = 0

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8 0
3 years ago
Beth is painting a picture. She usually buys acrylic paints at Michaels for $5.25 a tube. She runs out of black paint so she goe
andre [41]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Can anyone help me please??? It’s not online. And please keep scrolling if u don’t know ...
lions [1.4K]

Answer:

Step-by-step explanation:

slopes and equations:

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use the slope-intercept formula again with the point given and the slope 3

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put both equations into proper form

y = -2x +6

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y = 1/2x + \frac{3}{4}

there you go Amanda  :)

8 0
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