解方程：78.89-(38.89-Xx0.4)=50

网友回答

78.89-(38.89-Xx0.4)=50
78.89-38.89+0.4X=50
40+0.4X=50
0.4X=50-40
0.4X=10
X=10÷0.4
X=25======以下答案可供参考======
供参考答案1:
78.89-(38.89-Xx0.4)=50
78.89-38.89+0.4X=50
40+0.4X=50
0.4X=10
X=25