maths(quickly,right4*35%+3(21-x)=(15-2x)*20%-11/3[x-1/2(x-1)]=2/3(x-1/2)已知关于x的方程(2x-a)/3-(x-a)/2=x-1与方程3（x-2)=4x-5同解,求a的值

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/05 08:07:25
maths(quickly,right4*35%+3(21-x)=(15-2x)*20%-11/3[x-1/2(x-1)]=2/3(x-1/2)已知关于x的方程(2x-a)/3-(x-a)/2=x-1与方程3（x-2)=4x-5同解,求a的值

maths(quickly,right4*35%+3(21-x)=(15-2x)*20%-11/3[x-1/2(x-1)]=2/3(x-1/2)已知关于x的方程(2x-a)/3-(x-a)/2=x-1与方程3（x-2)=4x-5同解,求a的值
maths(quickly,right
4*35%+3(21-x)=(15-2x)*20%-1
1/3[x-1/2(x-1)]=2/3(x-1/2)
已知关于x的方程(2x-a)/3-(x-a)/2=x-1与方程3（x-2)=4x-5同解,求a的值

maths(quickly,right4*35%+3(21-x)=(15-2x)*20%-11/3[x-1/2(x-1)]=2/3(x-1/2)已知关于x的方程(2x-a)/3-(x-a)/2=x-1与方程3（x-2)=4x-5同解,求a的值
4*35%+3(21-x)=(15-2x)*20%-1
1.4+63-3x=3-0.4x-1
3x-0.4x=64.4-2
2.6x=62.4
x=24
1/3[x-1/2(x-1)]=2/3(x-1/2)
两边乘3
x-1/2(x-1)=2x-1
x-x/2+1/2=2x-1
2x-x/2=1/2+1
3x/2=3/2
x=1
3（x-2)=4x-5
3x-6=4x-5
x=-1
代入(2x-a)/3-(x-a)/2=x-1
(-2-a)/3-(-1-a)/2=-1-1
两边乘6
-4-2a+3+3a=-12
a-1=-12
a=-11

maths(quickly,right4*35%+3(21-x)=(15-2x)*20%-11/3[x-1/2(x-1)]=2/3(x-1/2)已知关于x的方程(2x-a)/3-(x-a)/2=x-1与方程3（x-2)=4x-5同解,求a的值 Tom is b___ boy .He learns Maths quickly. maths quickly Quickly! Quickly! quickly.. Quickly! quickly quickly quickly quickly! quickly, quickly~ quickly Quickly quickly! easy maths easy maths math maths Maths哪个对? “鼎”这个字 在不同词中的意思Quickly Quickly Quickly Quickly Quickly Quickly Quickly firemen came quickly and saved many people's ___(life)tom looked very___(happy)because he failed the maths exam___(ant)can smell things as well as dogs can快