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3 years ago

Solve the following 3x + 7 = 2x + 13 over 3

Mathematics

2 answers:

Lady_Fox [76]3 years ago

6 0

Answer:

3x+7=2x+13 over 3

3 (3x )+3 (7)=2x +13 over 3×3

9x+21=2x +13

9x- 2x=13-21

7x=-8

x=8/7

Step-by-step explanation:

Step 1:Multiply both sides by the denominator

Step 3:Group like terms

Step 5: Divide both sides to find for x

yulyashka [42]3 years ago

3 0

The answer is 5x+34/3

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elixir [45]

Question 1: Option B: $y=\frac{1}{3}x -2$

Question 2: Option D: $y+1=3 (x+1)$

Solution:

Question 1:

The point on the given line are (2, 4) and (4, –2).

Slope of the given line:

$$m=\frac{y_2-y_1}{x_2-x_1}$

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Slope -intercept form using point slope formula,

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Option B is the correct answer.

Question 2:

The point on the given line are (0, –3) and (2, 3).

Slope of the given line:

$$m=\frac{3+3}{2-0}$

$$m=\frac{6}{2}$

m = 3.

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Slope of parallel line =3

parallel lines passing through the point (–1, –1).

Point slope formula:

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Option D is the correct answer.

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Step-by-step explanation:

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The correct answer is B) -8.9%

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$\frac{NEW - OLD}{OLD} * 100$

In this case, the old value is 3.15 and the new value is 2.87. SO we use these in the equation to get the answer.

$\frac{NEW - OLD}{OLD} * 100$

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