Question

用简易方程解方程.x-52=15、x-44=12、x÷1.6=2.5、8.4÷x=7怎么解方程?例：x+0.75=2.3

Answer 1

x-52=15、

x=15+52

x=67

x-44=12、

x=12+44

x=56

x÷1.6=2.5、

x=2.5×1.6

x=40

8.4÷x=7

x=8.4÷7

x=1.2

x+0.75=2.3

x=2.3-0.75

x=1.55