A. Positive and negative numbers are opposite to each other B. two numbers with different symbols are opposite to each other C. any rational number has opposite numbers D. two numbers on both sides of the origin on the number axis

A. Positive and negative numbers are opposite to each other B. two numbers with different symbols are opposite to each other C. any rational number has opposite numbers D. two numbers on both sides of the origin on the number axis

The correct answer is: C, any rational number has the opposite number

On the number axis, the following statement is incorrect: A. in the two rational numbers, the absolute value of the larger one is far from the origin. B. in the two rational numbers, the larger one is
On the number axis, the following statement is incorrect ()
A. In two rational numbers, the absolute value is far from the origin
B. The larger of the two rational numbers is on the right
C. In the two rational numbers, the larger one is far from the origin
D. In two negative rational numbers, the larger one is near the origin
If LA | B | = 0, then the relationship between a and B is ()
A.a=b=0
B. A and B are opposite numbers
C. Different sign of a and B
D. A is not equal to B

The first is C, the second is a

Two out of nineteen plus one-half is equal to one

23 / 38

Solution equation: X △ 6 / 7 = 2 / 3 solution equation: x + 4 / 7 = 13 / 21
Every process needs to be improved

x/(6/7)=2/3 x+4/7=13/21
x*7/6=2/3 21x+12=13
7x=4 21x=13-12=1
x=4/7 x=1/21

11 out of 13 × x = 12 out of 13

11 / 13 × x = 12 / 13
x=12/13÷11/13
x=12/11

[13.5 + (11 + 2 and 1 / 4) / (1 + x) - 1 / 7] × 1 and 1 / 6 = 21

X=241/130

1 / 8 × 0.125 = solving equation 2 / 5 + x = 21 writing process X-7 2x = 4 / 8 = 5 x + 5 2x = 21
1 / 8 × 0.125=
solve equations
2 / 5 + x = 21 write process X-7 2x = 4 / 8 = 5 x + 5 2x = 21

1/8*0.125=1/8*（1/8）=1/64
3/20+4/5=3/20+16/20=19/20
2/5+x=21
x=21-2/5=103/5
x+2x/5=21
7x/5=21
x=21/(7/5)=15

Four parts x plus two thirds is one and twelve parts five

x/4+2/3=1+5/12
Multiply both sides by 12
3x+8=12+5
3x+8=17
3x=9
x=3

Equation two X - two fifths equals eight fifths
What's the formula

2x-2/5=8/5
2x=8/5+2/5
2x=(8+2)/5
2x=10/5
2x=2
x=1

Solving the equation two fifths plus seven tenths minus x equals one twentieth

2/5+7/10-x=1/20
x=11/10-1/20=21/20
x=21/20