How to calculate that x + 4 / - x-3 / 0.5 equals 1.6

How to calculate that x + 4 / - x-3 / 0.5 equals 1.6

This is a fractional equation, similar to the general equation solution, don't forget the final root, x = 20 / 17

Calculation - 1 ^ 6 - (0.5-2 / 3) △ 1 / 3 x [- 2 - (- 3) ^ 3] - [1 / 8-0.5 ^ 2]

-1^6-(0.5-2/3)÷1/3 X [-2-(-3)^3]-[1/8-0.5^2]
= -1-(3/6-4/6)×3× [-2+27]-[1/8-1/4]
= -1+1/6×3× 25+1/8
=-1+25/2+1/8
=-1+12.5+0.125
=11.625

0.5 + 0.5 = 1, 0.5 / 0.5 = 1, 0.9 + 0.6 = 1.5, 0.9 / 0.6 = 1.5, 3.2 + 0.8 = 4, 3.2 / 0.8 = 4, what else is the formula like this?

0.05 / 0.2 = 0.05 + 0.2 = 0.25
8.1 / 0.9 = 8.1 + 0.9 = 9
2.25 / 0.75 = 2.25 + 0.75 = 3
18.05 / 0.95 = 18.05 + 0.95 = 19
-22.05 / 1.05 = -22.05 + 1.05 = -21
-12.1 / 1.1 = -12.1 + 1.1 = -11

First find out the law, then find out the value of X. (0.8,0.2), (3,5) = 1.6, (1 / 2,1 / 3) = 5 / 2, calculate: (x, 1 / 5) = 4

（x,1/5)=4
(x+1/5)/(1/5)=4
x+1/5=4/5
x=3/5

(- 2 and 3 / 5) + 3 and 1 / 4 + (- 3 and 2 / 5) + 2 and 3 / 4 + (- 1 and 1 / 2) + 1 and 1 / 3

(- 2 and 3 / 5) + 3 and 1 / 4 + (- 3 and 2 / 5) + 2 and 3 / 4 + (- 1 and 1 / 2) + 1 and 1 / 3
=(3 1 / 4 + 2 3 / 4) - (2 3 / 5 + 3 2 / 5) + (1 1 / 3-1 1 / 2)
=6-6-1/6
=-1/6

A simple method to calculate 68 * 22.22 + 88.88 * 8

Original formula = 68 * 22.22 + 22.22 * 32 = 22.22 * 100 = 2222

Decomposition factor: (AX + by) & #178; + (ay BX) & #178; + 2 (AX + by) (ay BX) which expert can give us some advice

（ax+by)²+(ay-bx)²+2(ax+by)(ay-bx)
m=ax+by
n=ay-bx
2mn=2(ax+by)(ay-bx)
m²+n²+2mn=（m+n)²

What is the product of 24 minus 2 / 3 divided by 0.16 and multiplying the difference by 3 / 2

（24-0.16÷2/3）×3/2
=（24-0.24）×3/2
=24×3/2-0.24×3/2
=36-0.36
=35.64

With a 52 cm long wire, you can weld a 6 cm long, 4 cm wide, and how many cm high cuboid model

52/4-6-4=13-10=3cm

Arrange the remainder of 1, 2, 3, 4, 5, 6, divided by 4 to get a sequence, then the sum of the first 86 numbers in the sequence is

The remainder is in the order of (1,2,3,0), and 86 * 4 = 21 2, so the sum of the first 86 items in this column = 21 × (1 + 2 + + 3 + 0) + 1 + 2 = 129