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elixir [45]
3 years ago
7

12(x-2)+3x=1/2(x+6) +2

Mathematics
2 answers:
jeka943 years ago
8 0

Answer:

X = 2

Step-by-step explanation:

Let's solve your equation step-by-step.

12(x−2)+3x=1/2(x+6)+2

Step 1: Simplify both sides of the equation.

12(x−2)+3x=1/2(x+6)+2

(12)(x)+(12)(−2)+3x=(1/2)(x)+(1/2)(6)+2(Distribute)

12x+−24+3x=1/2x+3+2

15x+−24=1/2x+5

15x−24=1/2x+5

Step 2: Subtract 1/2x from both sides.

15x−24−1/2x=1/2x+5−1/2x

\frac{29}{2}x−24=5

Step 3: Add 24 to both sides.

\frac{29}{2}x−24+24=5+24

\frac{29}{2}x = 29

Step 4: Multiply both sides by 2/29.

(\frac{29}{2})*(\frac{29}{2}x)=(\frac{29}{2})*(29)

x = 2

garri49 [273]3 years ago
6 0

Answer: I think your answer is 2 ( please let me know if this is wrong ) !

Step-by-step explanation:

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At 3:30 p.m., Berto’s train was 34 miles past the egg farm, traveling at an average speed of 85 miles per hour. At the same time
timurjin [86]

E=egg farm

x=distantce between  the Berto´s trains and the meeting point.

t=time where the trains meet up

⇒110 miles/h                                          ⇒85miles/h

[---------------------------E----------------------]-------------------------------------X

[............12 miles.......][........34 miles.....][------------ x ----------------------]

distance between Berto´s train and Eduardo´s train=

=12 miles+34 miles=46 miles.

S=d/t      ⇒d=S*t

S=seed

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Eduardo´s train;

46 miles+x=t*110 miles/h  ⇒x=t*110 miles/h-46 miles  (1)

Berto´s train;

x=t*85 miles/h  (2)

With the equations (1) and (2) we suggest this system equations:

x=t* 110 miles/h-46 miles

x=t*85 miles/h

we solve this system equiations :

t*110 miles/h-46 miles=t*85 miles/h

110t miles/h-85t miles/h=46 miles

25 t miles/h=46 miles

t=46 miles/25 miles/h=1,84 hour  (≈1 hour, 50 minutes, 24 seconds)

x=t*85 miles/h=156,4 miles

Solution: 1,84 hour

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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