解方程.5x+8=39.5 4x-2x=49 4m-7=81 x+5x=63 a-56=204 x÷1.2=4
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/29 04:31:35
解方程. 5x+8=39.5 | 4x-2x=49 | 4m-7=81 |
x+5x=63 | a-56=204 | x÷1.2=4 |
(1)5x+8=39.5,
5x+8-8=39.5-8,
5x=31.5,
5x÷5=31.5÷5,
x=6.3;
(2)4x-2x=49,
2x=49,
2x÷2=49÷2,
x=24.5;
(3)4m-7=81,
4m-7+7=81+7,
4m=88,
4m÷4=88÷4,
m=22;
(4)x+5x=63,
6x=63,
6x÷6=63÷6,
x=10.5;
(5)a-56=204,
a-56+56=204+56,
a=260;
(6)x÷1.2=4,
x÷1.2×1.2=4×1.2,
x=4.8.
5x+8-8=39.5-8,
5x=31.5,
5x÷5=31.5÷5,
x=6.3;
(2)4x-2x=49,
2x=49,
2x÷2=49÷2,
x=24.5;
(3)4m-7=81,
4m-7+7=81+7,
4m=88,
4m÷4=88÷4,
m=22;
(4)x+5x=63,
6x=63,
6x÷6=63÷6,
x=10.5;
(5)a-56=204,
a-56+56=204+56,
a=260;
(6)x÷1.2=4,
x÷1.2×1.2=4×1.2,
x=4.8.
解方程.5x+8=39.5 4x-2x=49 4m-7=81 x+5x=63 a-56=204 x÷1.2=4
解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
解方程 x(2x-4)+3x(x-1)=5x(x-3)+8
求方程解x-5/x-4+x-9/x-8=x-8/x-7+x-6/x-5
解分式方程:(x-4)/(x-5)+(x-8)/(x-9)=(x-7)/(x-8)+(x-5)/( x-6)
解分式方程(X-4)/(X-5)-(X-5)/(X-6)=(X-7)/(X-8)-(X-8)/(X-9)
解方程:(x-4)/(x-5)-(x-5)/(x-6)=(x-7)/(x-8)-(x-8)/(x-9)
解方程:x-4/x-5 -x-5/x-6=x-7/x-8 -x-8/x-9
解因式方程:x-4/x-5+x-8/x-9=x-7/x-8+x-5/x-6
解分式方程 x-7/x-9+x-3/x-5=x-4/x-6+x-6/x-8
解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7)