One Step Equation
x+4=12
x=8
2x-4=0
x=2
4x=88
x=22
3x-27=33
x=20
3x+6-9=27
x=10
等式/方程
equation
x/2=16
x=32
4x+20=124
26
4x+7x-44=99
x=13
Sam saved 80 dollars into his bank account. He now has 430 dollars. How much did he have before saved his money. Write the equation.
x-80=430
3.5x=56
x=16
5x-25=300
x=65
4x+3=2x+9
x=3
You and your friend drive toward each other. The equation 50h = 190 - 45h represents the number h of hours until you and your friend meet. When will you meet?
2 hours
0.25x-4=16
x=80
x=16
一个长方形菜地的周长是96米，长是宽的4倍，问长和宽各是多少米？
解：设宽为x米
2（x+4x）=96
10x=96
x=9.6
9.6×4=38.4（米）
答：长是98.4米，宽是9.6米。