3[–x + (2 x + 1)] = x – 1

asked Mar 5, 2021 16.5k views

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Answer:

Explanation:

$3[-x + (2 x + 1)] = x -1\\\\\mathrm{Expand\:}3\left(-x+\left(2x+1\right)\right):\quad 3x+3\\3x+3=x-1\\$

Collect like terms

3x -x =-1-3

Add similar elements

$2x = -4\\\\\mathrm{Divide\:both\:sides\:by\:}2\\(2x)/(2)=(-4)/(2)\\\\Simplify\\\\x = -2$

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