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Solve for [tex]x[/tex]:
[tex]\[36 - 3|x| = 18\][/tex]


Sagot :

To solve the equation [tex]\( 36 - 3|x| = 18 \)[/tex], we follow these steps:

1. Isolate the absolute value expression:
[tex]\[ 36 - 3|x| = 18 \][/tex]

Subtract 36 from both sides to isolate [tex]\( -3|x| \)[/tex]:
[tex]\[ -3|x| = 18 - 36 \][/tex]
Simplify the right side:
[tex]\[ -3|x| = -18 \][/tex]

2. Divide both sides by -3:
[tex]\[ |x| = \frac{-18}{-3} \][/tex]
Simplify the fraction:
[tex]\[ |x| = 6 \][/tex]

3. Consider the definition of the absolute value:
The equation [tex]\( |x| = 6 \)[/tex] means that [tex]\( x \)[/tex] can be 6 or -6. Therefore, we have two cases to consider:
[tex]\[ x = 6 \quad \text{or} \quad x = -6 \][/tex]

Thus, the solutions to the equation [tex]\( 36 - 3|x| = 18 \)[/tex] are:
[tex]\[ x = 6 \quad \text{and} \quad x = -6 \][/tex]