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Elina [12.6K]
3 years ago
14

-7x-27=8-1(x-19) show how to get this

Mathematics
1 answer:
Nadya [2.5K]3 years ago
3 0
-7x-27=8-1(x-19) \\
-7x-27=8-x+19\\
-6x=54\\
x=-9
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Evaluate each expression for x = 6 and for x = 3. Based on your results, do you know whether the two expressions are equivalent?
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Please help me (this is one questionn)
faust18 [17]

Answer:

Below.

Step-by-step explanation:

Reading off the graph:

y-intercept  = (0, 2.5)

x-intercept = (3.5, 0)

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A farmer wants to fence a section of land for a horse pasture. Fencing cost $27 per yard. How much will it cost to fence the pas
lord [1]

Answer:

$16875

Step-by-step explanation:

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Olin [163]
The answer to the question is 8
6 0
2 years ago
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Artemon [7]

Answer:

\huge\boxed{(2,\ 3);\ (-1,\ 6)}

Step-by-step explanation:

f(x)=x^2-2x+3\to y=x^2-2x+3\\f(x)=-x+5\to y=-x+5\\\\\left\{\begin{array}{ccc}y=x^2-2x+3&(1)\\y=-x+5&(2)\end{array}\right

substitute (1) to (2):

x^2-2x+3=-x+5     add x to both sides

x^2-2x+x+3=-x+x+5

x^2-x+3=5        subtract 5 from both sides

x^2-x+3-5=5-5

x^2-x-2=0\\\\x^2+x-2x-2=0\\\\x(x+1)-2(x+1)=0\\\\(x+1)(x-2)=0\iff x+1=0\ \vee\ x-2=0\\\\\boxed{x=-1\ \vee\ x=2}

substitute the values of x to (2):

x=-1\\\\y=-(-1)+5=1+5=6\\\\\huge\boxed{(-1,\ 6)}\\\\x=2\\\\y=-2+5=3\\\\\huge\boxed{(2,\ 3)}

3 0
3 years ago
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