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Without solving, identify whether each of the following equations has a unique solution, no solution, or infinitely many solutions. 1) 3x+5= -2 2) 6(x-11)=15-4x 3) 12x+9=8x+1+4x…
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Without solving, identify whether each of the following equations has a unique solution, no solution, or infinitely many solutions. 1) 3x+5= -2 2) 6(x-11)=15-4x 3) 12x+9=8x+1+4x…
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Dec 17, 2018
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Without solving, identify whether each of the following equations has a unique solution, no solution, or infinitely many solutions.
1) 3x+5= -2
2) 6(x-11)=15-4x
3) 12x+9=8x+1+4x
4) 2(x-3)=10x-6-8x
5) 5x+6=5x-4
Mathematics
high-school
Ajit Pratap Singh
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Ajit Pratap Singh
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Let us evaluate the equations one at a time.
1) 3x + 5 = -2
3x = -7
x = -7/3
This equation has unique solution.
2) 6(x - 11) = 15 - 4x
6x - 66 = 15 - 4x
10x = 81
x = 81/10
Ths equation has a unique solution
3) 12x + 9 = 8x + 1 + 4x
12x - 8x - 4x = 1 - 9
0x = -8
x = -8/0
This equation has no solution.
4) 2(x - 3) = 10x - 6 - 8x
2x - 6 = 10x - 6 - 8x
2x - 10x + 8x = -6 + 6
0x = 0
x = 0/0
Ths equation has no solution.
5) 5x + 6 = 5x - 4
5x - 5x = -4 - 6
0x = -10
x = -10/0
This equation has no solution.
Ishaan Kumar
answered
Dec 23, 2018
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Ishaan Kumar
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