已知方程2(x-1)=3(x+2)的解为a+1求方程3[2(x-4)-5(x+a)]=6的解
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解:2(x-1)=3(x+2)
2x -2 = 3x -6
x = -8
∵ 方程2(x-1)=3(x+2)的解为a+1
∴ a+1 = -8
∴ a = -9
∴ 3[2(x-4)-5(x+a)]
= 3[2(x-4)- 5(x -9)]
= 3(2x -8 -5x +45)
= 3(-3x+37)
= -9x + 111
即-9x + 111 =6
∴ X=105/9
= 35/3
2x -2 = 3x -6
x = -8
∵ 方程2(x-1)=3(x+2)的解为a+1
∴ a+1 = -8
∴ a = -9
∴ 3[2(x-4)-5(x+a)]
= 3[2(x-4)- 5(x -9)]
= 3(2x -8 -5x +45)
= 3(-3x+37)
= -9x + 111
即-9x + 111 =6
∴ X=105/9
= 35/3
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2(x-1)=3(x+2)
2x -2 = 3x -6
x = -8
x = a+1 = -8
a = -9
3[2(x-4)-5(x+a)] = 3[2x-8 - 5(x -9)] = 3(2x -8 -5x +45) = 3(-3x+37) = 6
-3x + 37 = 2
x = 35/3
2x -2 = 3x -6
x = -8
x = a+1 = -8
a = -9
3[2(x-4)-5(x+a)] = 3[2x-8 - 5(x -9)] = 3(2x -8 -5x +45) = 3(-3x+37) = 6
-3x + 37 = 2
x = 35/3
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2(x-1)=3(x+2)
2x-2=3x+6
x=-8=a+1
a=-9
3[2(x-4)-5(x+a)]=6
3[2(x-4)-5(x-9)]=6
2x-8-5x+45=2
3x=35
x=35/3
2x-2=3x+6
x=-8=a+1
a=-9
3[2(x-4)-5(x+a)]=6
3[2(x-4)-5(x-9)]=6
2x-8-5x+45=2
3x=35
x=35/3
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