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slavikrds [6]
2 years ago
10

How to solve 2x + 3(5-x)-12=4(x+2) step by step

Mathematics
2 answers:
sleet_krkn [62]2 years ago
8 0
<span>2x + 3(5 - x) - 12 = 4(x + 2)

1) pass: </span><span>Delete the parentheses, making the multiplications.
</span>2x + 15 - 3x - 12 = 4x + 8

2) pass: <span>Put the numbers with incognito on the left and change the signal when changing sides if necessary, put the numbers without incognito on the right by changing the signal if necessary.
</span>2x + 15 - 3x - 12 = 4x + 8
2x - 3x - 4x = - 15 + 12 + 8

3) pass: <span>Solve the equations not forgetting the signal rules.
</span>2x - 3x - 4x = - 15 + 12 + 8
- x - 4x = - 3 + 8
- 5x = 5 Simplify by (-1) Exchanging the signals
5x = - 5
x = \frac{-5}{5}
\boxed{x = -1}

<span>I hope I have helped you, good studies!</span>


larisa86 [58]2 years ago
3 0
2x+3(5-x)-12=4(x+2)

Distribution property:
2x+15-3x-12=4x+8
Add like terms:
-1x+3=4x+8
Add 1x to both sides:
3=5x+8
Subtract 8 from both sides:
-5=5x
Divide by 5 on both sides to get x by itself:

x= -1
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Carly and janiya put some money into their money boxes every week. the amounts of money (y), in dollars, in their money boxes af
Lelu [443]
Carly : y = 60x + 40
janiya : y = 50x + 80

60x + 40 = 50x + 80
60x - 50x = 80 - 40
10x = 40
x = 40/10
x = 4 <=== so at 4 weeks, they will have the same amount of money <==
The money they have is : y = 60(4) + 40.....y = $ 280 <=

so ur answer is : 4 weeks, $ 280
8 0
3 years ago
Bill paid $45.35 in tax on a laptop that cost $589. About what percent sales tax did Bill pay?
Softa [21]

Answer:

267.1115

Step-by-step explanation:

3 0
3 years ago
What is an equation of the line that passes through the points (6, -3)and (−6,−5)?
Lady_Fox [76]

Answer:

y = 1/6x -4

Step-by-step explanation:

First find the slope

m= ( y2-y1)/(x2-x1)

m=(-5 - -3)/( -6 -6)

   = (-5+3)/ (-6-6)

       = -2/-12

       = 1/6

The slope intercept form is

y= mx+b where m is the slope and b is the y intercept

y = 1/6 x +b

Substitute a point into the equation

-5 = 1/6(-6) +b

-5 = -1+b

Add 1 to each side

-4 = b

y = 1/6x -4

4 0
3 years ago
Read 2 more answers
Help a brother out!!
zhenek [66]

Answer:

B,D,E for sure

Step-by-step explanation:

Not A because a parabola looks different. Not sure about C.

4 0
2 years ago
Jennifer began a savings account. She initially put $100 in the account and then
vitfil [10]

Jennifer would have $580 in her account after 24 months

a(x) = 20x + 100

the above function is a linear function

A linear function is a function that has a single variable raised to the power of 1.

100 is the constant

20 increases by m

a(x) is the dependent variable. Its value depends on the amount deposited per month and the number of months

The amount she would have after 24 months =

20(24) + 100 = $580

To learn more about linear functions, please check : brainly.com/question/20286983?referrer=searchResults

5 0
2 years ago
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