6χ+7X6=126 (η+3)÷5=1.3 3X(79+χ)=357 解方程

网友回答

6χ+7X6=126
6x=126-42
6x=84x=14(η+3)÷5=1.3
n+3=1.3X5
n+3=6.5
n=3.53X(79+χ)=357
79+x=119
x=40======以下答案可供参考======
供参考答案1:
X=14 N=3.5 X=40
供参考答案2:
6χ+7X6=126
6x=126-42
6x=84 x=14(η+3)÷5=1.3
n+3=1.3X5
n+3=6.5
n=3.53X(79+χ)=357
79+x=119
x=40