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laila [671]
2 years ago
11

(HELP) solve the system by substitution. check your answer. 4x+5y=7x=5y+8​

Mathematics
1 answer:
Marina86 [1]2 years ago
5 0
For this equation after the substitution you will get y=-1.
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What is the value of the expression below.4/5+3/5+3.5×5
Solnce55 [7]

Answer:

18.9

Step-by-step explanation:

4/5  +  3/5  +  3.5  * 5

Well using PEMDAS you would need to do 3.5 x 5 which is 17.5

After that you would to 4/5  + 3/5 which is 7/5 also as 1  2/5

Then you would do 7/5  +  17.5 = 18.9

I might be wrong but that is what I got and I hope it helps you :)

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2 years ago
Combine the like terms of the expression (8 + 6x) + (-4 + 9c). Explain how you simplified the expression in each step. * pls hel
Delicious77 [7]

Answer: 6x+9c+4

Step-by-step explanation:  (8 + 6x) + (-4 + 9c)

                                              8+6x-4+9c

                                              6x+9c+8-4

                                              6x+9c+4

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3 years ago
I need help with ANLGES!!!!
Phantasy [73]

Answer:

32, consecutive interior angles are supplementary.

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We know that the two angles add up to 180, because consecutive interior angles are supplementary. So let's set up an equation equal to 180.

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Now let's add like terms.

5x + 20 = 180

Now let's subtract 20 from both sides.

5x = 160

Now let's divide both sides by 5.

x = 32

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