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Thepotemich [5.8K]
3 years ago
5

A student created a table of values to help solve the following equation: y =4x +24 and y = 2x+6...what x-value is a solution to

the equation?
Mathematics
1 answer:
Yuki888 [10]3 years ago
6 0

Answer:

x = negative 9 or x=-9

Step-by-step explanation:

4x+24=2x+6. We can subtract 6 from both sides to get    

4x+18=2x. After that, we can switch the sides to get    

2x-18=4x, so negative 18 (-18) is equivalent to 2x. We get

2x=-18, divide both sides by 2 to get x=(-9).

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Alexander says that 3x + 4y is equivalent to (3)(4) + xy because of any order, any grouping. Is he correct why or why not
snow_lady [41]

Answer:

Alexander is incorrect because the expressions are not equivalent.

Step-by-step explanation:

If the expression is evaluated for any value of x, y; the result will not be same.

For instance, let assume x = 1 and y = 2

3x + 4y = 3 + 4 = 7

(3)(4) + xy = (3)(4) + (1 * 2) = 12 + 2 = 14

So, the expressions are not the same and Alexander is incorrect.

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3 years ago
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Solve for x. <br><br> 3x = 2/5
Elena-2011 [213]
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6 0
3 years ago
Dividethe product of 45 and25 by the sum of 53 and37
Serhud [2]

Answer:

12.5

Step-by-step explanation:

First you times 45 and 25 together, since product means multilpication. 45*25= 1125

Then you add 53 and 73, which is 90. Then you divide, which equals to the sum of 12.5. Hope this helps!

5 0
3 years ago
Evaluate the expression when n=3. 3 squared+ 16​
natita [175]
3^2 + 16
= (3 • 3) + 16
= 9 + 16
= 25

~
5 0
3 years ago
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