NinjaDevo

Thanks!         

(-4/5) - (2/6)

(-24/30) - (10/30)

-34/30

-1 4/30

 x-8x-4 +7 = 18 +3x +6

-7x + 3 = 3x + 24

      -3             -3

-7x = 3x + 21

-3x    -3x

-10x = 21

-(-10x = 21)

10x = -21

÷10    ÷10

x = -21/10

x = -2.1

verificar:

(-2.1)-8(-2.1)-4+7=18+3(-2.1)+6

-2.1 +16.8 -4 + 7 = 18 + (-6.3) + 6

17.7 = 17.7

Oh really? I've always seen it as a line over the top.

It might be different in different places around the globe too.

Ah I see my error, CPhill.

Must have just done it a little too fast.

√234568 = 484.3222068003902709

√234568 ≅ 484.32

I believe you would solve it with the second option you said: 4*3²

So you would do 3*3 first, then multiply the product by 4.

This might also depend on how 4x² is used, but I'm pretty sure that most of the time you would do it as I explained.