求9-3y=5+5y解方程的过程和答案~

问题描述:

求9-3y=5+5y解方程的过程和答案~

9-3y=5+5y
9-5=5y+3y
4=8y
1/2=y

9-5=5y+3y
8y =4
y= 1/2

9-3y=5+5y
9-5=3y+5y
8y=4
y=4/8
y=0.5

9-3y=5+5y
5+5y=9-3y
5+5y+3y=9-3y+3y
5+8y=9
5+8y-5=9-5
8y=4
8y÷8=4÷8
y=0.5