a. 5/4
b. 1
c. -2
d. 3
Answer :
Hi ! I will answer your question
=======================>
QUESTION :
Nilai x untuk persamaan 4x - 4 = -12 adalah……
STEP BY STEP :
4x - 4 = -12
4x = -12 + 4
4x = -8
x = -8/4
x = -2 ✓
Hasil = C) -2
[tex] \mathbb \color{aqua} \underbrace{JAWABAN}[/tex]
C. -2
------------------
[tex] \mathbb \color{orange} \underbrace{PENYELESAIAN}[/tex]
=> mencari nilai x :
[tex] \sf4x - 4 = -12[/tex]
[tex] \sf4x = -12 + 4[/tex]
[tex] \sf4x = - 8[/tex]
[tex] \sf x = \frac{ - 8}{4} [/tex]
[tex] \sf x = - 2[/tex]
------------------
[tex] \mathbb \color{violet} \underbrace{PEMBUKTIAN}[/tex]
=> substitusikan x = -2
[tex] \sf4x - 4 = -12[/tex]
[tex] \sf4( - 2) - 4 = -12[/tex]
[tex] \sf - 8 - 4 = -12[/tex]
[tex] \sf - 12 = - 12[/tex]
------------------
[tex] \mathbb \color{red} \underbrace{KESIMPULAN}[/tex]
Jadi, nilai x yang memenuhi adalah -2