Question

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1. no solutions
2. infinitely many solutions
3. infinitely many solutions
4. infinitely many solutions

Answer 1

4. one solution

Answer 2

this is for the practice

1. no solution
2. one solution
3. an infinite number of solutions
4. 3x +(-4) = 6x - 4, 4x + 5x + x = 11x - 3
5.7x - 12 = 8x + 29-x, 2(3x + 5) = (6x - 4)