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tatyana61 [14]
4 years ago
8

Solve for x in the equation 7x+3=2x+13

Mathematics
2 answers:
zmey [24]4 years ago
6 0

Answer:

2

Step-by-step explanation:

7x+3=2x+13

move variable to the left and change sign

7x-2x=13-3

collect like terms

5x=10

divide by 5 on both sides of equation

x=2

Eddi Din [679]4 years ago
3 0

Answer:

2

Step-by-step explanation:

subtract 2x from both sides then 3 from both. this gives you 5x = 10. divide by 5 and you get 2.

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2. There are some nickets, dimes, and quarters in a large piggy bank. For every 2 nickels, there are 3 dimes. For every 2 dimes,
Elena-2011 [213]

Answer:   There are 80 nickels, 120 dimes, and 300 quarters.

Step-by-step explanation:

Since for every 2 dimes there are 5 quarters, and for every 2 nickels there are 3 dimes, there can be 4 nickels, so there will be 6 dimes and 15 quarters. When you add all of them up it equals 25, so you take 500 divided by 25, and that equals 20, so you take the 4 nickels, 6 dimes, and 15 quarters times 20.

20 x 4 = 80

20 x 6 = 120

20 x 15 = 300

Hope this helps! :D

5 0
3 years ago
Twice a number plus 4 is at most twelve write an inequality based on the statement
wariber [46]

Answer:

2n+4≤12.   n for the number

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Given \tan A=\frac{11}{60}tanA=
Over [174]

Answer: 60/61

Step-by-step explanation:

7 0
3 years ago
A high schools basketball team won 36 percent of the games that played last season . The team won exactly 9 games last season .
Elenna [48]
25 games. 0.36x (where is the total number of games)=9. divide by 0.36 on both sides which ends up with 25.
4 0
4 years ago
Solve for x<br><br> x-4<br> — = 5<br> y+2
yulyashka [42]

I think the question is wrong!

It must be

x-4

___= 5

x+2

Answer: x - 4= 5x + 10

or,-10 -4 = 5x - x

or, -14=4x

or,-14/4= x

Therefore, x = -14/4

5 0
4 years ago
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