All categories

3 years ago

How can you solve 3(x + 2)=9 without distributing the 3?

Mathematics

1 answer:

Olin [163]3 years ago

8 0

Answer:

x=1

Step-by-step explanation:

You can divide by 3 on both sides instead of distributing.

x+2=9÷3

x+2=3

x=3-2

x=1

You might be interested in

Find the equation of this line. y= [?]x+[?]

DochEvi [55]

Answer:

$y=3x-4$

Step-by-step explanation:

Hi there!

Slope-intercept form: $y=mx+b$ where m is the slope and b is the y-intercept (the value of y when x=0)

1) Determine the slope (m)

$m=\displaystyle\frac{y_2-y_1}{x_2-x_1}$ where two points that fall on the line are $(x_1,y_1)$ and $(x_2,y_2)$

On the graph, two points are highlighted for us: (0,-4) and (2,2). Plug these into the formula:

$m=\displaystyle\frac{2-(-4)}{2-0}\\\\m=\displaystyle\frac{2+4}{2}\\\\m=\displaystyle\frac{6}{2}\\\\m=3$

Therefore, the slope of the line is 3. Plug this into $y=mx+b$ :

$y=3x+b$

2) Determine the y-intercept (b)

$y=3x+b$

Recall that the y-intercept occurs when x=0. Given the point (0,-4), the y-intercept is therefore -4. Plug this into $y=3x+b$ :

$y=3x+(-4)\\y=3x-4$

I hope this helps!

5 0

2 years ago

What will the factor tree look like with 25

const2013 [10]

25----------5 and 5--------------5 and 1 ------------5 and 1

4 0

3 years ago

Mixed number as a percent I'm so dumb

Maurinko [17]

The mixed number as a percent is 0.34%

6 0

3 years ago

What is 9 divided by 2.70 and explain

shusha [124]

3.33 repeating. if you look at it it's 2.70 what I would do is take away the zero for a minute and see how many times 9 goes into 27

8 0

3 years ago

Read 2 more answers

The fraction 7/9 produces a repeating decimal. True or false

andriy [413]

Answer:

True

Step-by-step explanation:

anything over 9 that is not 9 is a repeating decimal

8 0

3 years ago

Read 2 more answers