AzizHusain

You can just type in abs(x) for example to get |x|.

Distribute the 10 first by multiplying it with the x and 2.

10*x - 10*2 = 10x - 20

10x - 20 + 15 = 8x + 7

Notice, -20 + 15 = -5...

10x - 5 = 8x + 7

Now, all we have to do is add 5 to both sides and subtract 8x from both sides.

This should be easily solvable now.

This one requires distribution of the 2 and 16 first.

Multiply 2 to 3 and x --> 2*3 - 2*x = 6 - 2x

Multiply 16 to x and 1 --> 16*x + 16*1 = 16x + 16

Now, we have 6 - 2x = 16x + 16.

Add 2x to both sides and subtract 16 from both sides.

Can you take it from there?

2/3*3/4

Multiply directly or simplify first!

The 3's would cancel out and 4/2 = 2 which means you can cross out the 2 in 2/3 leaving you with:

1/1 * 1/ 2

1/2.

A. Without replacement, 26*25*24*10*9*8

B. Same situation, 26*25*24*23*10*9*8

Use the "." button. Also, you can type a fraction and it'll turn it into a decimal. Like 5/10 = 0.5

-1 + (1/3)

Get a common denominator first -- in this case, we can use 3:

So, -3/3 + 1/3 = -2/3.

You can't do much except divide both sides by 2.

2y + x = 75.

If you're looking for the equation of a line, then:

2y = -x + 75.

y = -1/2x + 75/2.

All you have to do is multiply 64.70 by 48 to get the total.

There are lots of countries!

Egypt, UAE, Saudi Arabia, etc.