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3 years ago

What is 3x + 7 > -5

Mathematics

2 answers:

Brrunno [24]3 years ago

6 0

Answer:

-4

Step-by-step explanation:

ddd [48]3 years ago

3 0

Answer:

x > -4

Step-by-step explanation:

Isolate the variable, x. Treat the greater than sign like a equal sign, in that what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, subtract 7 from both sides:

3x + 7 (-7) > -5 (-7)

3x > - 5 - 7

3x > -12

Next, isolate the variable, x, by dividing 3 from both sides:

(3x)/3 > (-12)/3

x > (-12)/3

x > -4

x > -4 is your answer.

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tia_tia [17]

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2 years ago

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rewona [7]

Answer:

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Step-by-step explanation:

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3 years ago

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2 years ago

AB contains points (2, 1) and (-1, -8). What is the equation of the line parallel to AB that contains point (0, 2)?

Iteru [2.4K]

For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

$y = mx + b$

Where:

m: It's the slope

b: It is the cut-off point with the y axis

We have two points that belong to the AB line:

$(x_ {1}, y_ {1}) :( 2,1)\\(x_ {2}, y_ {2}): (- 1, -8)$

We can find the slope:

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By definition, if two lines are parallel then their slopes are equal. Thus, a line parallel to AB will have slope $m = 3$ , then the equation will be of the form: