All categories

3 years ago

2x + 4 / 3 = -8 please help

Mathematics

2 answers:

arsen [322]3 years ago

4 0

X= -14/3 !

hope this helps

Lelechka [254]3 years ago

4 0

Answer:

X= -14/3

Step-by-step explanation:

Subtract \frac{4}{3}

from both sides.

2x=-8-\frac{4}{3}

2x=−8−

2 Simplify -8-\frac{4}{3}−8−

to -\frac{28}{3}−

2x=-\frac{28}{3}

2x=−

3 Divide both sides by 22.

x=-\frac{\frac{28}{3}}{2}

x=−

4 Simplify \frac{\frac{28}{3}}{2}

to \frac{28}{3\times 2}

3×2

x=-\frac{28}{3\times 2}

x=−

3×2

5 Simplify 3\times 23×2 to 66.

x=-\frac{28}{6}

x=−

6 Simplify \frac{28}{6}

to \frac{14}{3}

x=-\frac{14}{3}

x=−

You might be interested in

Find the equation of the line passing through the given points. Express the equation in standard form.

Artyom0805 [142]

We want to write the equation of the line passing through these two points in standard form.

First, we are going to do this in slope intercept form and then change the form to standard form, which is Ax + By = C

We will use the equation y = mx + b, and since we are given two points on the line we are going to determine the slope of the line by determining the change in the y coordinates

m = y sub2 - y sub1 divided by the change in the X coordinates x sub2 – x sub1

We will start by determining the slope

(1, -6) the 1 is x sub 1 and the 6 is y sub 1

(-7, 2) the -7 is x sub 2 and the 2 is y sub 2

2 - (-6) = 8

-7 -1 = -8

so equation now is m = -1

So now again referring back to the slope intercept of the line we now know y = -1 + b. We still have to determine b and the y intercept, and we can do this by using one of the given points and substituting in the value for y and x, and then solve for b. Since these points are on the line, they must satisfy this equation. If we use the first coordinates, we would substitute 1 for x and -6 for y.

-6 = -1 times x, which is 1 + b

b = -5

construct the line equation y = mx + b where m = -1 & b = -5

In slope intercept form the equation would be y = -x - 5

Now we want to write this in standard form now. We have to deal with two things. The x and y terms have to be on the left side and A and B and C have to be integers.

The standard form of a linear equation is Ax + By=CA x + By = C . Move all terms containing variables to the left side of the equation.

Add x to both sides of the equation.

y + x = -5

Reorder y & x

x + y = -5

3 0

3 years ago

Write an algebraic expression 3 more than twice a number

kati45 [8]

Answer:

2x+3

Step-by-step explanation:

Let x be the number

twice a number

3 more than

2x+3

5 0

3 years ago

Please answer ASAP. The question is down below.

zheka24 [161]

Answer: 1) c 2) a 3) d

Step-by-step explanation:

$\cos \theta = \dfrac{adjacent}{hypotenuse}\quad \\\\\\\cos 42.1=\dfrac{4.7}{x}\\\\\\x=\dfrac{4.7}{\cos 42.1}\\\\\\\large\boxed{x=6.33}\\$

******************************************************************************************

Reference angle is the angle measurement from the x-axis. There is no such thing as a negative reference angle.

-183° is 3° from the x-axis so the reference angle is $\large\boxed{3^o}$

*******************************************************************************************

Coterminal means the same angle location after one or more rotations either clockwise or counter-clockwise.

To find these angles, add or subtract 360° from the given angle to find one rotation, add or subtract 2(360°) from the given angle to find two rotations, etc.

To find ALL of the coterminals, add or subtract 360° as many times as the number of rotations. Rotations can only be integers. In other words, you can only have ± 1, 2, 3, ... rotations. You cannot have a fraction of a rotation.

Given: 203°

Coterminal angles: 203° ± k360°, k ∈ I

7 0

4 years ago

A right triangle has sides of length 3ft., 4ft., and 5 ft. what is the perimeter? what is it’s area?

ella [17]

Answer:

the perimeter is 12 feet

the area is 60 feet

Step-by-step explanation

perimeter=adding all sides

area=multiplying all sides

7 0

4 years ago

Read 2 more answers

What units of distance are in the metric system? How are they related?

yaroslaw [1]

Answer:

The most common units of distance In the metric system of measurement, are millimeters, centimeters, meters, and kilometers.

4 0

3 years ago