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scoundrel [369]
4 years ago
8

10. Solve for x. Show your set-up. 3x + 4 8 5x + 2 7

Mathematics
1 answer:
Travka [436]4 years ago
6 0

Answer:

❤️❤️ your answer is either 1 or 9 and i show the work for when you get the answer 1 and the work for haw you get the answer 9 if there is something wrong with my problem just let me know thanks ❤️❤️

Step-by-step explanation:

3x+4(8)=5x+2(7)

3x+32=5x+14

    -14       -14

3x+18=5x

-3x      -3x

18=2x

x=9

__________________________________________________________

3x+4=5x+2

    -2      -2

3x+2=5x

-3x    -3x

2=2x

x=1

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I need help with this one too if anyone can show me step by step
gladu [14]

Answer:

D) 2x^2 + 11x^3 + 12x^2 - 10x - 8

Step-by-step explanation:

you multiply each term of the first expression with each term of the second expression and add all the terms

so start with x^2 * 2x^2 = 2x^4

x^2 * 3x = 3x^3

x^2 * -4 = -4x^2

4x * 2x^2 = 8x^3

at this point it's clear that the correct answer is D but we can continue

4x * 3x = 12x^2

4x * -4 = -16x

4x^2

6x

-8

by adding

2x^2 + 11x^3 + 12x^2 - 10x - 8

4 0
3 years ago
What is 3=7(4 - 2u)-6u
alisha [4.7K]

Answer:

u = 5/4

Step-by-step explanation:

to evaluate for the value of u we would simply open the bracket and then evaluate for the value of u by collecting the like terms together.

solution

3=7(4 - 2u)-6u

3 = 28- 14u - 6u

collect the like terms

3 + 14u + 6u = 28

20u = 28 - 3

20u = 25

divide both sides by the coefficient of u which is 20

20u/20 = 25/20

u = 5/4

5 0
3 years ago
Read 2 more answers
Write an expression that is equivalent to 1/2a - 4
Naya [18.7K]

Answer:

1/2( a-8)

Step-by-step explanation:

i got it right ;)

8 0
3 years ago
Read 2 more answers
Ted picks 6 flowers with 4 petals on each flower. Bill picks 3 flowers with 8 petals on each flower.Join picks 2 flowers with 12
artcher [175]
Ted is correct because they all have 24 petals each
5 0
4 years ago
Which of the following numbers has the correct number of significant digits for the sum of 4.0125 and 5.72?
sladkih [1.3K]

Answer:

the answer to your question is 9.73

6 0
2 years ago
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