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SVEN [57.7K]
3 years ago
13

2(5x+3)=4x+18 how would i solve this problem

Mathematics
2 answers:
Darina [25.2K]3 years ago
8 0
X=2
You have to first distribute the two and then you have to move the variable to one side of the equation and the number to the other. The work is attached below

Assoli18 [71]3 years ago
4 0

Answer:

x=2

Step-by-step explanation:

2(5x+3)=4x+18                       Remove the brackets

10x + 6 = 4x + 18                   Subtract 4x from both sides.

10x - 4x + 6 = 4x-4x + 18      Combine

6x + 6 = 18                            Subtract 6 from both sides

6x + 6 - 6 = 18 - 6                 Combine

6x = 12                                  Divide by 6

6x/6 = 12/6                           Do the division

x = 2

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Solve the following system of equations using substitution.
dolphi86 [110]
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4 years ago
Guys please help me
poizon [28]
<h3>Answer:   -4</h3>

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

Explanation:

We can pick any two rows from the table to get the (x,y) points needed to find the slope.

Let's say we pick the second and third rows

Subtract the y values: 14-6 = 8

Subtract the x values in the same order: 1-3 = -2

Divide the differences: 8/(-2) = -4

The slope is -4

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

You can use the slope formula

Let's say the points are (x1,y1) = (1,14) and (3,6)

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

m = (6-14)/(3-1)

m = -8/2

m = -4

It's the same basic idea as the previous section. You subtract the y values together (y2-y1) and the x values together (x2-x1) and divide the differences to get m. The order of subtraction doesn't matter as long as you stay consistent. If you do something like y2-y1 and x1-x2, then you'll get the wrong slope value.

3 0
3 years ago
a pack of eight batterys cost 8.99. Bow much does each battery cost , give your answer to the nearest penny​
Ne4ueva [31]

Answer: $1.13

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
Chan receives a bonus from his job. He pays 30% in taxes, gives 30% to charity, and uses another 15% to pay off an old debt. He
charle [14.2K]

Answer:

Chan's Bonus amount was $2400.

Step-by-step explanation:

Let the Total amount receive from bonus be 'x'.

Given:

Chan pays 30% in taxes;

So we can say;

Amount paid in taxes will be equal to 30% of total amount receive

framing in equation form we get;

Amount paid in taxes = \frac{30}{100}x=0.3x = 0.3x

Now Given:

Chan pays 30% in Charity;

So we can say;

Amount paid in charity will be equal to 30% of total amount receive.

framing in equation form we get;

Amount paid in Charity = \frac{30}{100}x=0.3x

Also Given:

Chan pays 30% in old debts;

So we can say;

Amount paid in Old debts will be equal  30% of total amount receive

framing in equation form we get;

Amount paid in Old debts = \frac{15}{100}x=0.15x

Money left with him = $600

Now we can say that Total Amount Receive in bonus will be equal to Amount paid in taxes plus Amount paid in charity plus Amount paid in old debts plus amount left.

framing in equation form we get;

x=0.3x+0.3x+0.15x+600\\\\x= 0.75x +600\\\\x-0.75x=600\\\\0.25x=600\\\\x=\frac{600}{0.25} = \$2400

Hence Chan's Bonus amount was $2400.

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4 years ago
What is the x-intercept of the graph of y = –|x – 2|?
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Answer:

The x intercept would be -2

Step-by-step explanation:

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