All categories

3 years ago

3(x-4) = x + 14 How do you solve this equation

Mathematics

2 answers:

Dmitry_Shevchenko [17]3 years ago

4 0

Answer:

x=13

Step-by-step explanation:

you have to isolate the variable

3(x-4)=x+14

distribute

3x-12=x+14

subtract 14 from each side

3x-26=x

subtract 3x from each side

-26=-2x

divide each side by -2

13=x

flip sides

x=13

hope this helps!!! :)

Ainat [17]3 years ago

3 0

Answer:

X= 8.6666

Step-by-step explanation:

First multiply ehat is on the outside by the inside.

3×X=3x

3×-4= -12.

Now you have 3X-12= X+14

First add -12 to 14.

Your goal is to get all the numbers on one side and the letters on the other side.

12+14=26.

Now you have 3X=26

To get the X by itself divide 3 on both sides.

X÷3= X

26÷3=8.6666

So your answer is X=8.6666

You might be interested in

1) 2m + 3m2 - 4m

Lilit [14]

Answer:

1) 2m + 3m2 - 4m=7

7) 3m2 – 2m + 4m= 11

8) 20 + 109 + 39 - 4= 164

3) 2m + 4m - 3m2= -3

9) 4xy + x + 2xy= 0

4) 2y + 14x - 7x + 9y= 18

10) 6m2 - 6m - 9m2= -51

Step-by-step explanation:

5 0

3 years ago

Solve the proportion

4vir4ik [10]

Answer:

The proportion is 2/7 = 12/42

x = 12

The answer is 12

8 0

3 years ago

Fritz is recording the decay of radioactive material. The table displays the

damaskus [11]

Answer:

Every week, the radioactivity decreases by a factor of 5

After 1 week, it goes from 5,000 to 1,000

2 weeks 1,000 / 5 =200

3 weeks 200 / 5 = 40

4 weeks 40 / 5 = 8

5 weeks 8 / 5 = 1.6

6 weeks 1.6 / 5 = 0.064

7 weeks 0.064 / 5 = 0.0128

8 weeks .0128 / 5 = 0.00256

9 weeks 0.00256 / 5 = 0.000512

10 weeks 0.000512 / 5 = 0.0001024

Step-by-step explanation:

3 0

2 years ago

Find the gradient of the line segment between the points (-2,3) and (-5,7)

Rudiy27

Answer:

$\frac{4}{ - 3}$

Procedures:

$\frac {y2 - y1}{x2 - x1}$

$\frac{7 - 3}{ - 5 - - 2}$

$\frac{7 - 3}{ - 5 + 2}$

$\frac{4}{ - 3}$

7 0

3 years ago

Solve the equation <br> (If possible please show work)

deff fn [24]

Answer:

$x=-3$

Step-by-step explanation:

So we have the equation:

$-2(-x-4)+3=-7-4x$

First, distribute the left side:

$-2(-x)-2(-4)+3=-7-4x\\2x+8+3=-7-4x$

Add values on the left side:

$2x+11=-7-4x$

Add 7 to both sides. The right side cancels:

$(2x+11)+7=(-7-4x)+7\\2x+18=-4x$

Subtract 2x from both sides. The left side cancels:

$(2x+18)-2x=(-4x)-2x\\18=-6x$

Divide both sides by -6:

$(-6x)/-6=18/-6\\x=-3$

Therefore, x equals -3.

8 0

3 years ago

Read 2 more answers