Responda A)7(X-4)=2X-3 B)3(x-2)=4(3-x) C)3(3x-1)=2(3x+2 ) D)7(x-2)=5(x+3)
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a)
7(x - 4) = 2x - 3
7x - 28 = 2x - 3
7x - 2x = - 3 + 28
5x = 25
x = 25/5
x = 5
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b)
3(x - 2) = 4(3 - x)
3x - 6 = 12 - 4x
3x + 4x = 12 + 6
7x = 18
x = 18/7
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C)
3(3x - 1) = 2(3x + 2)
9x - 3 = 6x + 4
9x - 6x = 4 + 3
3x = 7
x = 7/3
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D)
7(x - 2) = 5(x + 3)
7x - 14 = 5x + 15
7x - 5x = 15 + 14
2x = 29
x = 29/2
7(x - 4) = 2x - 3
7x - 28 = 2x - 3
7x - 2x = - 3 + 28
5x = 25
x = 25/5
x = 5
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b)
3(x - 2) = 4(3 - x)
3x - 6 = 12 - 4x
3x + 4x = 12 + 6
7x = 18
x = 18/7
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C)
3(3x - 1) = 2(3x + 2)
9x - 3 = 6x + 4
9x - 6x = 4 + 3
3x = 7
x = 7/3
---------------------------------
D)
7(x - 2) = 5(x + 3)
7x - 14 = 5x + 15
7x - 5x = 15 + 14
2x = 29
x = 29/2
Respondido por
0
A)7(X-4)=2X-3
7x - 28 = 2x - 3
7x - 2x = - 3 + 28
5x = 25
x= 25/5
x= 5
B)3(x-2)=4(3-x)
3x - 6 = 12 - 4x
3x + 4x= 12 + 6
7x = 18
x= 18/7
C)3(3x-1)=2(3x+2 )
9x - 3 = 6x + 4
9x - 6x = 4 + 3
3x = 7
x= 7/3
D)7(x-2)=5(x+3)
7x - 14 = 5x + 15
7x - 5x = 15 + 14
2x= 29
x= 29/2
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