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3[-x+2(2x+1)]=-1 what does x equal

User Ialexander
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1 Answer

2 votes

3[-x+2(2x+1)]=-1

Multiply the bracket by 2

(2)(2x)(2)(1)

4x+2

3 [-x+4x+2]=-1

3 [3x+2]=-1

Multiply the bracket by 3

(3)(3x)(3)(2)=-1

9x+6=-1

Move +6 to the other side. Sign changes from +6 to -6

9x+6-6=-1-6

9x=-7

Divide by 9 for both sides.

9x/9=-7/9

x=-7/9

Answer: x=-7/9

User Mr Stanev
by
7.9k points

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