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Zielflug [23.3K]
3 years ago
14

-6x + 3x = -21 linear equations

Mathematics
2 answers:
snow_tiger [21]3 years ago
8 0

well combine like terms

-3x = -21

divide both sides by -3

x = 7

kompoz [17]3 years ago
5 0

Answer:

x = 7

Step-by-step explanation:

-6x + 3x = -21

Combine like terms

-3x = -21

Divide by -3

-3x/-3 = -21/-3

x = 7

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Can someone just explain to me how to do this please
Dmitrij [34]

Answer: -7.5

Step-by-step explanation:

area = 1/2bh.

area = 1/2(x+6)(5)

area = x/2 + 15

area = x/2 = -15

area = x = -7.5

area = -7.5

5 0
3 years ago
What is 73+48.7 show how you got the answer​
kotykmax [81]

Answer:

121.7

Step-by-step explanation:

73

+48.7

=121.7

121.7

-73

=48.7

6 0
4 years ago
What is 8 more than twice the sum of a number and 3 is the same as -6?
a_sh-v [17]
This can be solver by creating a small equation with x being the number and solving for x. The equation would be 8 + 2( x + 3 ) = -6
Solve for x:
8 + 2( x + 3 ) = -6
Distribute the 2
8+ (2x+6)=-6
Subtract 8
2x+6= -14
Add 6
2x= 8
Divide by 2
x=4

So the number you are looking for is 4

I hope this helps!
8 0
3 years ago
Find the percent change from the first value to the second 50;31
tiny-mole [99]

Answer:

-0.38%

Step-by-step explanation:

Divide 31 by 50. 31 / 50 = 0.62.

1 - 0.62 = 0.38

Since it is a decrease in change the percent change is negative.

-0.38%

6 0
2 years ago
Which of the following is equal to the fraction below?
zheka24 [161]
I think it’s A Idk tho ‍♀️ use photomath or google
8 0
3 years ago
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