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Eddi Din [679]
3 years ago
13

5 + 5(x + 4) < 20Solve the inequality Help plz​

Mathematics
1 answer:
aleksley [76]3 years ago
4 0

Answer:

You would solve this as if the inequality sign was an equal sign.

Just make sure when you divide by a negative or multiply by a negative the sign switches, anyways:

5 + 5(x +4) < 20

Distribute the 5 and simplify

5 + 5x + 20 < 20

25 + 5x < 20

Isolate x    (subtract 25 from both sides)

5x < -5

Divide by 5

x < -1

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Which expression is equivalent to 3(4m - 2) - 2(m + 5)
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Answer:

A. 10m - 16

Step-by-step explanation:

First, distribute 3 to all terms within the corresponding parenthesis, and -2 likewise:

3(4m - 2) =

3 * 4m = 12m

3 * -2 = -6

3(4m - 2) = 12m - 6

-2(m + 5) =

-2 * m = -2m

-2 * 5 = -10

-2(m + 5) = -2m -10

Combine like terms:

12m - 6  -2m - 10

12m - 2m - 6 - 10

(12m - 2m) + (-6 - 10)

10m - 16

A. 10m - 16 is your answer.

~

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why do whole numbers raised to an exponent get greater while fractions raised to an exponent get smaller?
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Does the Commutative Property of Addition apply when you add two negative integers?
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