3x+4x+1=2,x=?

3x+4x+1=2,x=? Correct Answer 3

3x + 4x + 1 = 2 = >3x + 3 + 4xx(x + 1) = 2 = >7x + 3 = 2(x2 + x) = > 2x2 - 7x + 2x - 3 = 0 = >2x2 - 5x - 3 = 0 = > 2x2 - 6x + x - 3 = 0 2x (x - 3) + 1 (x - 3) = 0 (x - 3) (2x + 1) = 0 = > (x - 3) = 0 [(2x + 1) = 0 .'. x = 3
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