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dezoksy [38]
3 years ago
5

6. -20 + -2m Can u help me

Mathematics
1 answer:
stellarik [79]3 years ago
4 0

Answer

Step-by-step explanation:

Replace all occurrences of

+

−

with a single

−

. A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because

1

⋅

−

1

=

−

1

−

20

−

2

m

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Example 3
AysviL [449]
ANSWER:
Peremeter=150 feet
Let wodth be x
then,length be x +15
ATQ
x+x+15=150
2x+15=150
2x=150-15
2x=135
x=135/2
x=67.5 feet
Then:
WIDTH=67.5 feet
LENGTH=67.5+15
= 82.5 feet
6 0
3 years ago
The expression below represents the total value in dollars for four boxes of Collectables in the expression, x is the number of
SIZIF [17.4K]
Simplify to 3.6-1.8x
7 0
3 years ago
What is the value of x? ​
atroni [7]

Answer: The value of x is 2

Step-by-step explanation:

x + 7 =3x + 3

-x        -x

7= 2x + 3

-3           -3

4= 2x

x= 2

5 0
4 years ago
X-(-5) = 10<br><br>x=<br><br>help me​
MrRissso [65]

Answer:

X-(-5) = 10

x+5=10

x=10-5

x=5

6 0
3 years ago
Read 2 more answers
(K-10) divided by 2 = -7<br><br> What’s the answer for the variable k?
stira [4]

Answer:

k = -4

Step-by-step explanation:

(k - 10)/2 = -7

First: multiply by 2 to get rid of the denominator

2(k - 10)/2 = 2(-7)

k - 10 = -14

Next: add 10 to both sides to isolate k

k - 10 + 10 = -14 + 10

k = -4

7 0
4 years ago
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