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olya-2409 [2.1K]
3 years ago
9

Simplify: a(3+5a)-4(a2+5)

Mathematics
1 answer:
faust18 [17]3 years ago
6 0

Answer:

\displaystyle a( 3 + 5a) - 4(a^2 +5) = a^2 + 3a - 20

Step-by-step explanation:

We want to simplify the expression:

a( 3 + 5a) - 4(a^2 +5)

Distribute:

\displaystyle = (3a + 5a^2) + ( -4a^2 - 20)

Rearrange:

\displaystyle = (5a^2 - 4a^2) + (3a) + (-20)

Combine like terms:

\displaystyle = a^2 + 3a -20

In conclusion:

\displaystyle a( 3 + 5a) - 4(a^2 +5) = a^2 + 3a - 20

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Answer:infinite

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

6x−54=6(x−9)

6x+−54=(6)(x)+(6)(−9)(Distribute)

6x+−54=6x+−54

6x−54=6x−54

Step 2: Subtract 6x from both sides.

6x−54−6x=6x−54−6x

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Step 3: Add 54 to both sides.

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Answer:

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4 years ago
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The college charges $4.00 to park a car in their garage and then $2.00 and hour for each hour parked. Tom paid $14.00 to park th
MissTica

Tom parked the car at the garage for 5 hours

Step-by-step explanation:

Let x be the number of hours

Then according to given statement the equation will be:

2x+4 = 14\\2x+4-4 = 14-4\\2x = 10

Dividing both sides by 2

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Hence,

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Keywords: Linear equation, variables

Learn more about linear equations at:

  • brainly.com/question/3126500
  • brainly.com/question/3306327

#LearnwithBrainly

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