Question

pengerjaan |4-3x|=|-4| nilai mutlak

Answer 1

Hey !!

Mod is called modular and that cannot be negative, it shall be positive , but if there is an equation in a mod, we take both the negative and positive.

I 4x - 3 I = I -4 I

- ( 4x - 3 ) = 4

+ ( 4x - 3 ) = 4

- 4x + 3 = 4

- 4x = 1

x = ( -1 / 4 )

4x + 3 = 4

4x - 3 = 4

4x = 7

x = ( 7 / 4 )

x = ( -1 / 4 ) and ( 7 / 4 )

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Answer 2

$\textbf {Hey there, here is the solution.}$

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.

|4 - 3x| = |-4|

.

Given that |-4| = 4 :

|4 - 3x| = 4

.

Remove the mod bracket on the left:

4 - 3x = ±4

.

Take away 4 from both sides:

-3x = 4 - 4 or -3x = -4 - 4

.

Evaluate RHS:

-3x = 0 or -3x = -8

.

Divide both sides by 3:

x = 0 or x = 8/3

Answer: x = 0 or x = 8/3

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⭐$\textbf {Cheers}$⭐