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2 years ago

Julia is using the distributive property to simplify 3(x+2) find her mistake and correct it.

Mathematics

1 answer:

Zanzabum2 years ago

6 0

Answer:

The answer is 3x+6

Step-by-step explanation:

You multiply what's on the outside of the parenthesis by everything on the inside, so you would do 3 times x and 3 times 2. They don't combine because they are like terms.

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What is the value of n in the equation 1/2(n – 4) – 3 = 3 – (2n + 3)?

Travka [436]

Distribute 1/2 to (n – 4):

 $\frac{1}{2} \times n = \frac{1}{2}n$
$\frac{1}{2} \times -4 = -2$

Subtract (2n + 3):

 $- (2n + 3) = -2n -3$

Your equation should now look like this:

 $\frac{1}{2}n - 2 - 3 = 3 - 2n - 3$

Combine like terms on both sides:

 $-2 - 3 = -5$
$3 - 3 = 0$
$\frac{1}{2}n - 5 = -2n$

Subtract 1/2n from both sides:

 $-5 = -\frac{5}{2}n$

Divide both sides by -5/2 to get n by itself:

 $n = 2$

The value of n is 2.

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2 years ago

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3 years ago

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Step-by-step explanation: 28^2+ 13 − 176

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2 years ago

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Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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