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asambeis [7]
3 years ago
7

2x+4=12 helppppppppppppppp​

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

Answer:

x=4

Step-by-step explanation:

2x+4=12

Step 1: subtract both sides by 4

4-4=0 and 12-4=8

Now you are left with 2x=8

Step 2: divide 2 on both sides

2/2=1x and 8/2=4

Therefore, x=4

Anni [7]3 years ago
3 0

Answer:

x=4

Step-by-step explanation:

1. 2x+4=12

2. 2x+4-4=12-4

3. 2x=8

4. 2x/2=8/2

5. x=4

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Karins mom runs a dairy farm. Last year Betty the cow gave 375 gallons less than twice the amount from Bessie the cow. Together,
yawa3891 [41]
X = bessie and y = betty

x + y = 1464
y = 2x - 375

x + 2x - 375 = 1464
3x - 375 = 1464
3x = 1464 + 375
3x = 1839
x = 1839/3
x = 613 <== Bessie gave 613 gallons

y = 2x - 375
y = 2(613) - 375
y = 1226 - 375
y = 851 <== Betty gave 851 gallons
7 0
3 years ago
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Im going to start giving hard questions now and who ever has the most professional answer or the correct answer gets brainliest.
PilotLPTM [1.2K]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
(8x - 14) (5y + 16) (5x + 34)​
labwork [276]

Answer: 200x^2y+640x^2+1010xy+3232x-2380y-7616

Step-by-step explanation:

((8x−14)(5y+16))(5x+34)

((8x−14)(5y+16))(5x)+((8x−14)(5y+16))(34)

200x2y+640x2−350xy−1120x+1360xy+4352x−2380y−7616

200x2y+640x2+1010xy+3232x−2380y−7616

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3 years ago
In a classic Conan Doyle story, Sherlock Holmes solves a crime mystery by recognizing that a guard dog didn't bark. Therefore, t
ohaa [14]

Answer:

G. Modus tollens

Step-by-step explanation:

This question used the inference called modus tollens.

Modus tollens is a a valid form of argument that is of this form below:

<em>If S, then T</em>

<em>i</em><em>f not S, then not T.</em>

S = dog doesn't know perpetrator

Not S = dog knows who the perpetrator is

T = the dog barked

Not T = the dog did not bark.

So if we put this into the statement in bold letters, we would have:

The dog doesn't know perpetrator, so it barked.

And,

The dog didn't bark, so it knows the perpetrator.

3 0
3 years ago
Please help me im really confused and i need an answer and how to do it!
Bess [88]

Answer:

X is 64.

Step-by-step explanation:

64/4 = 16

16-3 =13

13 is greater than or equal to 13

Hope this helps!

8 0
3 years ago
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