Solve the equation. X △ 5 = 1.4 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 3.4x-48 = 26.8 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 13 (x + 5) = 169

（1）x÷5=1.4 x÷5×5=1.4×5 x=7（2）3.4x-48=26.8 3.4x-48+48=26.8+48 3.4x÷3.4=74.8÷3.4 x=22（3）13（x+5）=169 13（x+5）÷13=169÷13 x+5=13 x+5-5=13-5 x=8

13 (x + 5) = 169 the equation needs to be solved by changing the sign if the equal sign is used

13(X+5)=169
X+5=169÷15
X+5=13
X=13-5
X=8

How to solve the equation with 0.6x + 0.3 (32-x) = 13.2

0.6X+9.6-0.3X=13.2
Merge congeners
0.3X+9.6=13.2
0.3X=3.6
X=1.2

After the decimal point of a number is moved one place to the right, the number obtained is 27.9 larger than the original number______ ．

Because the decimal point of a number moves to the right one place and expands 10 times, the number obtained can be expressed as: 10 × a number & nbsp; & nbsp; & nbsp; & nbsp; according to the meaning of the title: & nbsp; & nbsp; & nbsp; 10 × a number - a number = 27.9 & nbsp; & nbsp; & nbsp; a number × (10-1) = 27.9 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp

The decimal point of a number moves one place to the left, which is 36 less than the original number. How much is the number? We need to analyze it step by step
Step by step,

After moving one digit to the left, the original number will be divided by 10. In sixth grade, it will be solved by fractions. In fourth grade, it will be doubled and the original number will be 10 times. Their difference is nine times. One time is 36 / 9 = 4. Ten times is 40 / 7
Is that enough

The decimal point of a certain number is moved one place to the right, and the new number is 18 times larger than the original number. What is the original number?

Original number
=18÷（10-1）
=18÷9
=2.0
In order to conform to the meaning of the question, the original number should be written as 2.0

After the decimal point of a number is moved to the right by one place, it is 21.6 larger than the original number, and the original number is () faster!

2.4

A decimal moves its decimal point one place to the right, and the number obtained is 3.6 larger than the original number. What is the original number?

The decimal point is shifted one place to the right to get 10 times the original number
Original number: 3.6 ÷ (10-1) = 0.4

The decimal point of a number moves one place to the right, which is 27 times larger than the original number. What is the original number

What's 27 more than the original number after the decimal point of a number moves one place to the right

Moving one bit to the right is 10 times the original, 9 times more than the original, that is 27
So the original number is 27 / 9 = 3