Persamaan nilai mutlak |x-7|=|2x-2|

Persamaan nilai mutlak |x-7|=|2x-2|

Penjelasan dengan langkah-langkah:

$|x - 7| = |2x - 2| \ {x}^{2} - 14x + 49 = 4 {x}^{2} - 8x + 4 \ 4 {x}^{2} - {x}^{2} - 8x + 14x + 4 - 49 = 0 \ 3 {x}^{2} + 6x - 45 = 0 \ {x}^{2} + 2x - 15 = 0 \ (x + 5)(x - 3) = 0$

$x + 5 = 0 \ x = - 5$

$x - 3 = 0 \ x = 3$

$hp : x = ( - 5 : dan : 3)$