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3 years ago

Simplify

Mathematics

2 answers:

Anton [14]3 years ago

6 0

Answer:

1.) -2x + 24

2.) 3x + 21

3.) 5x - 17

4.) 15x

5.) 18

Step-by-step explanation:

1.) The first step to simplify this equation is to combine like terms. Also remember to always keep the sign before the number/variable to use when combining like terms.

3x + 14 - 5x + 10

3x - 5x + 14 + 10

-2x + 24

2.) Use distributive property to distribute the 3 to x and 7. Keep the sign.

3(x + 7)

3x + 21

3.) Use distributive property to distribute the 5 to x and 4 then add three. Keep the signs. Combine like terms.

5(x - 4) + 3

5x - 20 + 3

5x - 17

4.) Once again, use distributive property to distribute the 3x to x and 4. When multiplying 3x times x just think of x with a 1 in front of it (1x) and just multiply 3 times 1. Carry the x when multiplying 4x times 4. Combine like terms.

3x (x + 4)

3x + 12x

15x

5.) All you have to do is replace x in "3x" and solve.

3(10) - 12

30 - 12

If you have any additional questions feel free to ask me or your teacher so you can really master what you're learning. :)

Ket [755]3 years ago

4 0

Answer:

1. -2x+24

2. 3x+21

3. 5x-17

4. 3x²+12x

5. 18

Step-by-step explanation:

2. 3(x)+3(7)=3x+21

3. 5(x)+5(-4)+3= 5x-20+3=5x-17

4. 3x(x)+3x(4)=3x²+12x

5. 3(10)-12=30-12=18

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jeyben [28]

Answer:

Step-by-step explanation:

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3 years ago

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Deffense [45]

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3 years ago

Read 2 more answers

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11Alexandr11 [23.1K]

Hey there!

You got the first part right where you added r to both sides. However, you need to make sure that you complete all actions on both sides, including canceling out parts of terms by division. The only thing you need to do is divide both sides by h instead of just the left. This will make your answer:

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3 years ago

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exis [7]

Answer:

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Step-by-step explanation:

multiply 7 with 7 then i with i and lastly multiply the result numbers

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3 years ago

Simplify |−3 − 8|<br> A. –11<br><br> B. –5<br><br> C. 5<br><br> D. 11

bazaltina [42]

Answer:

<h3>It's answer is D. 11 </h3>

Here we can see there is modulus so

while doing calculation

| -3-8 |

| -11 |

Here it is modulus so - changes into +

so it's answer is 11.

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3 years ago