5x-39=56求解检验
问题描述:
5x-39=56求解检验
答
5x-39=56
5x-39+39=56+39
5x=95
5x÷5=95÷5
x=19
5x-39=56求解检验
5x-39=56
5x-39+39=56+39
5x=95
5x÷5=95÷5
x=19