x=2
Explicación paso a paso:
3+2(4+2x)+1=20-2(2-x)
3+8+4x+1=20-4+2x
12+4x=16+2x
4x-2x=16-12
2x=4
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Verified answer
x=2
Explicación paso a paso:
3+2(4+2x)+1=20-2(2-x)
3+8+4x+1=20-4+2x
12+4x=16+2x
4x-2x=16-12
2x=4
x=2