Calculus

Add 2y - 4 to each side; 5y - 13 = 0 so y = 2.6

Presumably this is a simultaneuos equation question that can be solved using the elimination method:

2(2x-3y = 11)

3(5x+2y = 18)

Multiply all terms in the top equation by 2 and in the bottom by 3:

4x-6y = 22

15x+6y =54

Add both equations together:

19x = 76

Divide both sides by 19 to find the value of x:

x = 4

Substitute the value of x into the original equations to find the value of y:

Therefore: x = 4 and y = -1

1000000000*2.6 = 2600000000 or, more simply, 2.6*109 or 2.6 billion.

4x2 -x -1 :D

Yes.

the answer is 7

No, thank you.

That's going to depend completely on the value of 'x'.

There are an infinite number of things it could be.

12

x^5+x^4+7x^2+x-2

There can be no answer because there is no equation. There is an expression that can be simplified but that is not an answer.

Y = ex(x + 2)

Y = ex/(X + 2)

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Theta is the ninth letter of the Greek alphabet the eighth is Eta

5, if I'm not mistaken.

3 x 29 = 87

If: 10x2-64 = 36+6x2

Then: 4x2-100 = 0

And: (2x-10)(2x+10) = 0

So: x = 5 or x = -5

7525 x 5 = 37625

151,200

8

26-7k=6k

First, add 7k to get k on one side.

26-7k+7k=6k+7k

26=13k

Divide both sides by 13 to get k by itself.

26/13=13k/13

2=k

The answer is 2.

0.033 x 704.5 = 23.2485

By definition, infinity is not and does not have a limit. It is value which mathematicians have created to represent something too extensively large for the human mind to comprehend.

y = -26

y=-2x+3 is an equation. It does not have an answer. If the question is "what if y=0?" then the answer is x=3/2.