试题与答案

解方程.x+36=75y-62=397x=844x=361.5x=9x÷1.3=

题型:解答题

题目:

解方程.
x+36=75
y-62=397x=84
4x=361.5x=9x÷1.3=6.5.

答案:

(1)x+36=75,

x+36-36=75-36,

x=39;

(2)y-62=39,

y-62+62=39+62,

x=101;

(3)7x=84,

7x÷7=84÷7,

x=12;

(4)4x=36,

4x÷4=36÷4,

x=9;

(5)1.5x=9,

1.5x÷1.5=9÷1.5,

x=6;

(6)x÷1.3=6.5,

x÷1.3×1.3=6.5×1.3,

x=8.45.

试题推荐
微信公众账号搜索答案