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bearhunter [10]
2 years ago
9

The variable in -8y4 is

Mathematics
1 answer:
lesantik [10]2 years ago
8 0

Answer:

y=variable

Step-by-step explanation:

In a math expression, the variable is any letter representing for a missing number.

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Vadim26 [7]

Answer:

(7,2)

Step-by-step explanation:

x + y = 9 + 2x - 3y = 8 is really two equations, and you should show this by separating x + y = 9 from 2x - 3y = 8 through the use of a comma, or the word "and," or through writing only one equation per line.

Here you have the system of linear equations

 x +   y =  9

2x - 3y = 8.

Let's solve this system by elimination.  Mult. the 1st eqn by 3, obtaining the system

3x + 3y = 27

2x - 3y =    8

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

5x = 35, so that x = 7.  Subbing 7 for x in x + y = 9, we get 7 + y = 9, indicating that y = 2.

Thus, the solution to this system of equations is (7,2).


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2 years ago
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16 + 32 ÷ 4 + (10 - 6)2
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Answer:

16+32÷4+(10-6)2=16+8+8=32

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