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Zielflug [23.3K]
4 years ago
13

Problem 3x + 5 + 2x = 12 + 4x

Mathematics
2 answers:
Ratling [72]4 years ago
8 0
X=7 All you need to do is combine like terms and then move the appropriate terms to the appropriate side.
vredina [299]4 years ago
7 0

Answer:

x=7

Step-by-step explanation:

because u add the like terms so

3x+2x

which would be

5× so now its

5x+5=12+4x

-4. -4

x+5=12

-5. -5

x=7

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FINND X AND Y PLS LOL ILL MARK BRAINILEST DONT GUESS THO<br> -2x + 5y = 60<br> x + 5y = 45
Katen [24]

Answer:

(-5, 10)

Step-by-step explanation:

I used the substitution method.

3 0
3 years ago
the vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation
ser-zykov [4K]

Answer:

45+10x = y

Step-by-step explanation:

$45 -- stays the same no matter what so that's constant.

$10 -- this varies dependent on the number of vaccinations your dog needs, so you'd use a variable to represent the number of vaccinations (in this case I'm using variable "x").

So, for example if your dog needed 7 vaccinations, it would be: 45+10(7) = y -- answer being $115.

6 0
3 years ago
An equilateral triangle with side length 9 cm is shown in the diagram, work out the area of the triangle.
amid [387]

The answer is 35.1 cm².

Hope this helps; have a great day!

4 0
3 years ago
If a dolphin is at -7 meters below sea level and jumps 0.5 meters, wheres the dolphin at now?
likoan [24]

Answer:

-6.5 meters below sea level

Step-by-step explanation:

-7 m+0.5 m= present position

present position= -6.5 meters below sea level

6 0
4 years ago
What is 42% of 120.00?
jarptica [38.1K]
p\%=\frac{p}{100}\\\\42\%=\frac{42}{100}\\\\42\%\ of\ 120.00\to\frac{42}{100}\cdot120.00=42\cdot1.20=50.40\leftarrow answer
3 0
3 years ago
Read 2 more answers
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