4x-3(2-x)=5x-7(3-x)解方程.15-(7-5x)=2x+(5-3x)3/4[4/3(1/2t-1/4)-8]=3/2t-1

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4x-3(2-x)=5x-7(3-x)解方程.15-(7-5x)=2x+(5-3x)3/4[4/3(1/2t-1/4)-8]=3/2t-1

4x-3(2-x)=5x-7(3-x)解方程.15-(7-5x)=2x+(5-3x)3/4[4/3(1/2t-1/4)-8]=3/2t-1
4x-3(2-x)=5x-7(3-x)解方程.
15-(7-5x)=2x+(5-3x)
3/4[4/3(1/2t-1/4)-8]=3/2t-1

4x-3(2-x)=5x-7(3-x)解方程.15-(7-5x)=2x+(5-3x)3/4[4/3(1/2t-1/4)-8]=3/2t-1

4x-3(2-x)=5x-7(3-x)
4x-6+3x=5x-21+7x
7x-6=12x-21
5x=15
x=3
15-(7-5x)=2x+(5-3x)
15-7+5x=2x+5-3x
8+5x=-x+5
6x=-3
x=-1/2
3/4[4/3(1/2t-1/4)-8]=3/2t-1
3/4*4/3(1/2t-1/4)-3/4*8=3/2t-1
1/2t-1/4-6=3/2t-1
-t=5又1/4
t==-5又1/4
数学辅导团为您解答

4x-3(2-x)=5x-7(3-x)
4x-6+3x=5x-21+7x
7x-6=12x-21
12x-7x=-6+21
5x=15
x=3

15-(7-5x)=2x+(5-3x)
15-7+5x=2x+5-3x
8+5x=-x+5
5x+x=5-8
6x=-3
x=-1/2

3/4[4/3(1/2t-1/4)-8]=3/2t-1
(1/2t-1/4)-6=3/2t-1
1/2t-1/4-6=3/2t-1
3/2t-1/2t=-1/4-6+1
t=-21/4

4x-3(2-x)=5x-7(3-x)
4x-6+3x=5x-21+7x
4x+3x-7x-5x=-21+6
-5x=-15
x=3
15-(7-5x)=2x+(5-3x)
15-7+5x=2x+5-3x
15-7-5=2x-3x-5x
3=-6x
x=-0.5
3/4[4/3(1/2t-1/4)-8]=3/2t-1
1×(1/2t-1/4)-6=3/2t-1
1/2t-1/4-6=3/2t-1
1/2t-3/2t=-1+6+1/4
-1t=21/4
t=-21/4
请采纳。

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