两个数字的和是 50，它们的差是 10。找出这些数字。
引入了一个系统来定义从负无穷到正无穷的数字。该系统被称为数字系统。数系很容易在数轴上表示，整数、整数、自然数都可以在数轴上定义。数轴包含正数、负数和零。
方程是一种数学语句，它用“=”符号连接两个相等值的代数表达式。
例如：在等式 3x+2 = 5 中，3x+ 2 是左侧表达式，5 是与“=”符号连接的右侧表达式。
主要有3种方程：
- 线性方程
- 二次方程
- 多项式方程
在这里，我们将研究线性方程组。
一个变量的线性方程是写成 ax + b = 0 的方程，其中 a 和 b 是两个整数，x 是一个变量，并且只有一个解。例如，3x+2=5 是一个只有一个变量的线性方程。因此，这个方程只有一个解，即 x = 3/11。另一方面，两个变量的线性方程有两个解。
A one-variable linear equation is one with a maximum of one variable of order one. The formula is ax + b = 0, using x as the variable.
这个方程只有一个解。这里有一些例子：
- 4x = 8
- 5x + 10 = -20
- 1 + 6x = 11
一个变量中的线性方程以标准形式写成：
ax + b = 0
Here,
- The numbers ‘a’ and ‘b’ are real.
- Neither ‘a’ nor ‘b’ are equal to zero.
求解一个变量中的线性方程
求解只有一个变量的方程的步骤如下：
步骤 1：如果有任何分数，请使用 LCM 将其删除。
第 2 步：等式两边都应该简化。
第 3 步：从方程中删除变量。
第 4 步：确保您的回答是正确的。
问题陈述：两个数字的和是50，它们的差是10。任务是找到数字。
解决方案：
Let both numbers be first and second.
According to the problem statement:
first + second = 50 (Consider this as 1st equation)
first – second = 10 (Consider this as 2nd equation)
Add both equations:
first + second + first – second = 50 + 10
2 * first = 60
first = 60 / 2
first = 30
So from this, we get first = 30, put this value in any equation i.e.
first + second = 50 (Put the value of first in this equation)
30 + second = 50
second = 50-30
second = 20
So, the numbers are 30 and 20.
If we consider the case i.e. second – first = 10 then the solution will be the same and the first number will become 20 and the second number will become 30.
样题：两个数的和是20，差是10。任务是找出这些数。
解决方案：
Let both numbers be first and second.
According to the problem statement:
first + second = 20 (Consider this as 1st equation)
first – second = 10 (Consider this as 2nd equation)
Add both equations:
first + second + first – second = 20 + 10
2 * first = 30
first = 30 / 2
first = 15
So from this, we get first = 15, put this value in any equation i.e.
first + second = 20 (Put the value of first in this equation)
15 + second = 20
second = 20-15
second = 5
So, the numbers are 15 and 5.
If we consider the case i.e. second – first = 10 then the solution will be the same and the first number will become 5 and the second number will become 15.