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Allisa [31]
3 years ago
5

Solve each equation for xx. For each step, describe the operation used to convert the equation. How do you know that the initial

equation and the final equation have the same solution set?
a. 1/5[10−5(x−2)]=1/10(x+1)
b. x(5+x)=x²+3x+1
c. 2x(x²−2)+7x=9x+2x³
Mathematics
1 answer:
ladessa [460]3 years ago
4 0

Answer:

a. x=1.8?

Step-by-step explanation:

im not really sure but i need help also. Im sorry but i just thought to say something.

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iren [92.7K]

Answer:

$66

Step-by-step explanation:

$16 x 3 = $48

$9 x 2 = $18

$18 = $48 = $66

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3 years ago
Multiply the expression (1/3 m-n)^2​
nataly862011 [7]

Answer:

{(

6 0
3 years ago
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PLEASE HELP WILL GIVE BRAINLIEST
seropon [69]

Answer:

-6(3x +2) = 2x -5 -20x -7 (use the distributive property )

-18x -12 = -18x - 12 (i combined like terms on the right side of the equation)

at this point I can tell that it's true for any value of x, so they all apply

Step-by-step explanation:

8 0
3 years ago
What is the slope of the line that passes through the pionts (6,-2) and (12,-2)
Schach [20]
The slope of the line is .75 or 3/4
3 0
3 years ago
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Need help ASAP not sure how to simplify this could someone pleade comment answer
madam [21]

Answer:

8 (3/4)

Step-by-step explanation:

convert everything into improper frantions

-3 1/2 = -7/2

-12 1/4 = -49/4

common denominators

-7/2 = -14/4

solve

-(14/4)-(-49/9)

two negative cancel out to make a positive

-(14/4)+(49/9)

35/4

35 divided by 4 = 8.75 = 8 3/4

5 0
3 years ago
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