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1.In mathematics, a rectangular equation is a type of linear equation in which the coefficients are arranged in a square grid.
在数学中，矩形方程是一种线性方程类型，其中系数按方格排列。
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2.The rectangular equation for the system of equations can be written as: x + y = 5.
该系统的方程组的矩形方程可以写成：x + y = 5。
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3. To solve this rectangular equation, we need to find the value of x that makes the sum of all terms equal to 10.
要解这个矩形方程，我们需要找到使所有项之和等于10的x值。