t. Which of the following equations has a unique solution?
4x + 2y +3=0, 12x+6y + 8 = 0
4x + 2y + 3 = 0, 8x + 4y+6=0
4x + 2y+3=0,8x+4 y+9=0
4x + 2y +7 =0, 8x + 4y + 3 = 0.
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Step-by-step explanation:
the all the equtions are linear equations
so we recall the identies
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