solve for x, | |2x-1|-4 | ≤ 2
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Answer:
x-3) + 2(x+1) = 4
→ x = -1
Step-by-step explanation:
y=x−3
|y|+2|y+4|=4
y≥0
y+2(y+4)=4
3y+8=4
3y=−4
y=−43
y≠−43
y<−4
−y+2(y−4)=4
−y+2y−8=4
y=12
y≠12
−4≤y<0
−y+2(y+4)=4
−y+2y+8=4
y=−4
−4=x−3
x=−1
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