Solve for x: −3|x + 7| = −12
2 answers:
<span>Solve for x: −3|x + 7| = −12
</span><span>−3|x + 7| = −12
</span>
x= -3, -11
Answer:
x = -3 or x = -11
Step-by-step explanation:
−3|x + 7| = −12
To solve for x we need to get 'x' alone. Here we are given with absolute function. we need to isolate absolute function alone.
Divide both sides by -3
|x+7| = 4
For absolute function we consider two cases, positive and negative
If |x| =a then x=a or x=-a
|x+7| = 4
x+7 = 4 or x+7 = -4
Solve both equations for x. Subtract 7 from both sides
x = -3 or x = -11
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Answer:
Step-by-step explanation:
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