Asked by Pretty
3x +1 =x +d
7x -4 =x +2d
7x -4 =x +2d
Answers
Answered by
Anonymous
2 x - 1 d = -1
6 x - 2 d = +4
4 x - 2 d = -2
6 x - 2 d = +4
--------------------- subtract
-2 d = -6
d = 3 etc
6 x - 2 d = +4
4 x - 2 d = -2
6 x - 2 d = +4
--------------------- subtract
-2 d = -6
d = 3 etc
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