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Soloha48 [4]
3 years ago
15

If 2x -3(x+4)=-5, Then x=​

Mathematics
2 answers:
Snowcat [4.5K]3 years ago
4 0

Answer:

<h2>x = -7</h2>

Step-by-step explanation:

2x-3(x+4)=-5\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\2x+(-3)(x)+(-3)(4)=-5\\\\2x-3x-12=-5\qquad\text{add 12 to both sides}\\\\-x=7\qquad\text{change the signs}\\\\x=-7

kherson [118]3 years ago
3 0
The answer is -7

2x-3(x+4)=-5

Multiply by -3

2x-3x-12=-5

Collect like terms

-x-12=-5

Move constant to the right to change its sign

-x=-5+12

Add

-x=7

Change the signs

x=-7

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Answer:

350<5x

Step-by-step explanation:

They have to sell more than 350 boxes so the 350 has to on the less than side of the inequality. Since each box sells for $5, we would use 5x as a representation of how much many they make for the boxes sold.

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Answer:

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Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

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34% of lightbulb replacement requests numbering between 47 and 52

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Answer:

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