3x – 4 = 8 x = … #Vaksin

By Admin ReiPosted on December 11, 2022

3x - 4 = 8 x = ... #Vaksin

3x – 4 = 8 x = … #Vaksin

3x – 4 = 8

3x = 8 + 4

3x = 12

x = 12÷3

x = 4

Pembuktian:

3(4) – 4

=12 – 4

=8

$3x - 4 = 8$

$= 3xcancel{ - 4 + 4} = 8 + 4$

$= 3x : = : 8 + 4$

$= 3x = 12$

$= x = frac{12}{3}$

$= x = 4$

Pembuktian :

3x – 4

= 3(4) – 4

= (3 × 4) – 4

= 12 – 4

= 8 ✔