All categories

3 years ago

Solve for x: 7x-3=3x+1

Mathematics

2 answers:

Elina [12.6K]3 years ago

6 0

Answer:

x=1

Step-by-step explanation

kvv77 [185]3 years ago

3 0

7x -3 = 3x+1

7x -3 +3 = 3x +1 +3

7x = 3x + 4

4x = 4

x = 1

Therefore the X is 1

You might be interested in

Graph the equation y-1=-3(x-3)

trapecia [35]

Answer:

y= -3x +10

the y-intercept is at 10 and then go 3 down one to the right

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Select all that apply.

Nata [24]

Answer: 12 girls to 27 students

5 boys to 9 students

15 boys to 12 girls

HOPE THIS HELPS

CAN U PLEASE GIVE ME BRAINLIEST

4 0

3 years ago

Read 2 more answers

The length of a bridge on a map is 1.5 cm. What is the actual length of the bridge in meters if the map is drawn at a scale of 1

Ilya [14]

Answer:

Step-by-step explanation:

If the length of a bridge on a map is 1 cm,then the actual length = 40,000

If the length of a bridge on a map is 1.5 cm,then the actual length= 1.5 * 40000

= 60000.0 = 60,000 m

3 0

3 years ago

10 points!!! please help :(

daser333 [38]

To complete the identity, we need these fundamental identities:

$1)\displaystyle{sec(x)=\frac{1}{cos(x)}$

$2) cos(x-y)=cos(x)cos(y)+sin(x)sin(y)$

$\displaystyle{csc(x)= \frac{1}{sin(x)}$

Thus, by identity 1 we have:

$\displaystyle{ sec( \frac{ \pi }{2}-\theta )= \frac{1}{cos(\frac{ \pi }{2}-\theta)}$

by identity :

$\displaystyle{cos(\frac{ \pi }{2}-\theta)=cos(\frac{ \pi }{2})cos(\theta)+sin(\frac{ \pi }{2})sin(\theta)$

recall the values :

$\displaystyle{ sin(\frac{ \pi }{2})^R=sin(90^o)=1\\\\$

$\displaystyle{ cos(\frac{ \pi }{2})^R=cos(90^o)=0$ ,

so:

$cos(\frac{ \pi }{2})cos(\theta)+sin(\frac{ \pi }{2})sin(\theta)=0+sin(\theta)=sin(\theta)$

Putting all these together, we have:

$\displaystyle{ sec( \frac{ \pi }{2}-\theta )= \frac{1}{cos(\frac{ \pi }{2}-\theta)}= \frac{1}{cos(\frac{ \pi }{2})cos(\theta)+sin(\frac{ \pi }{2})sin(\theta)}= \frac{1}{sin(\theta)}}$

which is equal to $csc(\theta)$ , by identity 3

Answer: D

7 0

3 years ago

Kevin savings account balances changed from 1140 in January to 1450 in April. Find the average rate of change per month

snow_tiger [21]

103 1/3. In February, it will be 1243 1/3. In March, it will be 1346 2/3. In April, it will be 1450.

6 0

3 years ago

Read 2 more answers