[tex]\frac{x+1}{4} =\frac{x+2}{3} \\\\3(x+1)=4(x+2)\\\\3x+3=4x+8\\\\3x-4x=8-3\\\\-x=5\\\\x=-5[/tex]
Resultado: -5
Atte: Sabius95
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PROCEDIMIENTO:
[tex]\frac{x+1}{4} =\frac{x+2}{3} \\\\3(x+1)=4(x+2)\\\\3x+3=4x+8\\\\3x-4x=8-3\\\\-x=5\\\\x=-5[/tex]
Resultado: -5
Atte: Sabius95