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1.判定一个方程是不是一元一次方程的标准是什么？ 答:判定一个方程是不是一元一次方程,要将方程经过去分母、去括号、移项、合并同类项等一系列变形,如果能化为形如ax=b(a≠0)或者ax+b=0(a≠0),它就是一元一次方程.否则,就不是一元一次方程.方程ax=b或ax+b=0,只有当a≠0时,才是一元一次方程.反之,如果明确指出方程ax=b或ax+b=0是一元一次方程,则此方程隐含着已知条件a≠0.
1. What is the criterion for determining whether an equation is a univariate equation? A: Determine whether an equation is a one-ary-one equation or not, and go through a series of deformations such as de- denominator, parentheses, transfer term, and merger of similar items. If it can be converted into a shape such as ax=b(a≠0) or ax+b =0 (a ≠ 0), it is a univariate equation. Otherwise, it is not a univariate equation. The equation ax = b or ax + b = 0, only when a ≠ 0, it is a univariate equation. Conversely, if it is clear It is pointed out that the equation ax=b or ax+b=0 is a univariate equation, and this equation implies a known condition a≠0.