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3 years ago

13

How do you solve: 2(7-x)+4x=20

1 answer:

Angelina_Jolie [31]3 years ago

5 0

First expand it
Next subtract 14 - 2x + 4x so it can be 14 + 2x
Next subtract 14 from both sides
Next subtract 20 - 14 so it can be 6
Then divide both sides by 2
And lastly reduce the fraction 6/2 and once u reduce it u have your answer which is x = 3.

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Elena-2011 [213]

Part A: subtract 6 from both sides
Divide by -3 on both sides
X=-3
Part B: add like terms (-2K-3k)
Add 12 to both sides
Add 5k to both sides
Divide by 5 on both sides
K=3
Part C: distribute 6 into the parentheses
Add like terms together (36-5)
Subtract 1 from both sides
Subtract 36v from both sides
Divide by -30 on both sides
-1=v

7 0

3 years ago

Drugs+Kids=..................<br><br> Very tough question guys

ycow [4]

Answer:

= desaster

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

During a furniture sale, Dorothy paid $20 for new couch cushions. If the discount percentage is given in the first column, find

DochEvi [55]

<h3>Answers:</h3><h3>First box = 57.14</h3><h3>Second box = 80</h3>

=============================================

Explanation:

If you save 65%, then you pay the remaining 35%

0.35x is the final price when x is the original price

0.35x = 20 solves to x = 57.14 approximately after dividing both sides by 0.35

57.14 goes in the first box

--------------

This must mean 80 goes in the other box.

Here's the steps on how to get 80

If you save 75% then you pay the remaining 25%

0.25x = 20

x = 20/0.25

x = 80

80 goes in the second box

3 0

3 years ago

If 4x +5=9x-2,then x=

user100 [1]

<span>4x +5=9x-2
9x - 4x = 5 + 2
5x = 7
x = 7/5
x = 1.4</span>

5 0

3 years ago

What is the value of a ?

Maru [420]

$7 \: units$

4 0

3 years ago