(x-4)=7 pakai caranya

( x -4 ) = 7
x = 7
kalo gak salah

Mungkin nilai mutlak nya...

|x - 4| = 7
(x - 4)² = 7²
x² - 8x + 16 = 49
x² - 8x - 33 = 0
(x - 11)(x + 3) = 0
x = 11 dan x = -3

HP {11 , -3}

Semoga berguna +_+