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djverab [1.8K]
3 years ago
14

What is the value of X 8+4x+2+56-42x

Mathematics
1 answer:
Stels [109]3 years ago
3 0

Answer:

i cannot answer the value of X unless there is an equal sign but the equation simplified is 66-38x

Step-by-step explanation:

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Can someone plz teach me step by step, how to do this?
vitfil [10]

Answer:

C

Step-by-step explanation:

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3 years ago
X³+x²-x-1=?<br> What is the solution for th8s?
Assoli18 [71]

Answer: (x − 1 ) ^{2}

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3 years ago
Math help @LIEMONDER
klio [65]
First picture)
I: 5x+2y=-4
II: -3x+2y=12

add I+(-1*II):
5x+2y-(-3x+2y)=-4-12
8x=-16
x=-2

insert x=-2 into I:
5*(-2)+2y=-4
-10+2y=-4
2y=6
y=3

(-2,3)

question 6)
I: totalcost=115=3*childs+5*adults
II: 33=adults+childs
33-adults=childs

insert childs into I:
115=3*(33-adults)+5*adults
115=99-3*adults+5*adults
16=2*adults
8=adults

insert adults into II:
33-8=childs
25=childs

so it's the last option

question 7)
a) y<6 and y>2 can also be written as 2<y<6, so solution 3 exist for example
b) y>6 and y>2 can also be written as 2<6<y, so solution 7 exist for example
c) y<6 and y<2 inverse of b: y<2<6, so for example 1
d) y>6 and y<2: y<2<6<y, this is impossible as y can be only either bigger or smaller than 2 or 6

so it's the last option

question 8)
I: x+y=12
II: x-y=6

subtract: I-II:
x+y-(x-y)=12-6
2y=6
y=3

insert y into I:
x+3=12
x=9

(9,3)

question 9)
I: x+y=6
II: x=y+5

if you take the x=y+5 definition of II and substitute it into I:
(y+5)+y=6

which is the second option :)
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3 years ago
Jerry has been staying up late at night to get in some extra study time. He hopes to get accepted into his favorite college and
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(Answer coming from someone who’s stressed himself)
Upset stomach.
When you’re stressed, you have a higher heart rate, difficulty sleeping, and feeling exhausted the whole day.
3 0
3 years ago
Read 2 more answers
Determine whether the quadrilateral is a parallelogram using the specified method.
STALIN [3.7K]

Answer:

It is a parallelogram, I don't know what specified method you want us to use

5 0
3 years ago
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