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Hunter-Best [27]
3 years ago
15

3 + x + x = 15 Just need a simple answer and explanation thank you

Mathematics
2 answers:
elena-s [515]3 years ago
6 0

Answer:

x=6

Step-by-step explanation:

x=6 because if you simplify this equation you get 3 + 2x = 15. The first step to solving a equation is having the x value on one side of the equation and the number value on one side. to do this we can subtract 3 from both sides of the equation and get the equation 2x=12. which would mean x=6.

klemol [59]3 years ago
4 0

Answer:

6

Step-by-step explanation:

3+x+x=15

3+2x=15

2x=15-3

2x=12

x=12/2

x=6

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A chemist is using 351 millimeters of a solution of acid and water. If 18.2% of the solution is acid, how many milliliters of ac
Zolol [24]

Answer:

The % of of acid in solution  = 63.88 ml

Step-by-step explanation:

The solution of acid and water = 351 milliliters

The % of of acid in solution  = 18.2% of 351 ml

Or, The % of of acid in solution  = \frac{18.2}{100} × 351 ml

Or, The % of of acid in solution  = 63.882 ml

Hence ,The % of of acid in solution  = 63.88 ml  Answer

3 0
3 years ago
Please help it’s done tonight and i need a answer because i can’t figure it out:( pls help!
Darya [45]

Answer:

569,186,434

Step-by-step explanation:

hope this helps

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5 0
3 years ago
Can someone help me please !???
AfilCa [17]

Answer:

3 (x-12) (x+2)

Step-by-step explanation:

3 ( x^2 - 10 x - 24)

3 (x-12) (x+2)

Please mark for Brainliest!! :D Thanks!!

For more questions or more information, please comment below!

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Csqrt%7B91%20-%2040%5Csqrt%7B3%7D%20%7D" id="TexFormula1" title="\sqrt{91 - 40\sqrt{3} }" al
lianna [129]

Answer:

5\sqrt{3} - 4

Step-by-step explanation:

\sqrt{(4-5\sqrt{3}  )^{2} }

5\sqrt{3}  - 4

3 0
3 years ago
What is 6 x 8 1/2<br><br> Please show me how to do it
Andrei [34K]
Answer:
= 6/1 × 17/2

= (6 × 17) / (1 × 2)

= 102/2

= 51/1

<span>= 51</span>
3 0
3 years ago
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