Resposta:
2x-2-1=9-x 3x-7/5-x/10=1/2
2x-3=9-x 30x/10-14/10-x/10=5/10
2x+x=9+3 30x-x=5+14
3x=12 29x=19
x=4 x=1,526.....
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Resposta:
2x-2-1=9-x 3x-7/5-x/10=1/2
2x-3=9-x 30x/10-14/10-x/10=5/10
2x+x=9+3 30x-x=5+14
3x=12 29x=19
x=4 x=1,526.....