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3 years ago

Write an expression that is equivalent to the expression 4n-n+0.5n-2n

Mathematics

1 answer:

FinnZ [79.3K]3 years ago

4 0

Answer:

1.5n

Step-by-step explanation:

The distributive property can be used to simplify expressions like this (collect terms).

= n(4 -1 +.5 -2)

= n(3 +.5 -2)

= n(3.5 -2)

= n(1.5)

= 1.5n

_____

Of course, you can do the addition in any convenient way. Some like to add all the positive and negative terms, then find the difference.

= n((4 +.5) -(1 +2)) = n(4.5 -3) = 1.5n

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Answer: $\boxed{\bold{m=-66}}$

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Explanation: $\downarrow\downarrow\downarrow$

<><><><><>

[ Step One ] Switch Sides

$\bold{-2\left(m+4\right)+m=58}$

[ Step Two ] Expand $\bold{-2\left(m+4\right)+m}$

$\bold{-m-8}$

[ Step Three ] Rewrite Equation

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[ Step Four ] Add 8 To Both Sides

$\bold{-m-8+8=58+8}$

[ Step Five ] Simplify

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[ Step Six ] Divide Both Sides By -1

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[ Step Seven ] Simplify

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<><><><><><><>

$\bold{\rightarrow Mordancy \leftarrow}$

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