acar4438
acar4438
13-10-2017
Mathematics
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Respuesta :
heralindemanoxl5mu
heralindemanoxl5mu
13-10-2017
×=13
(3x-3)/4=(2x+1)/3 CROSS MULTIPLY
3(3x-3)=4(2x+1) DISTRIBUTE
9x-9=8x+4 ADD 9 TO BOTH SIDES
9x=8x+13 SUBTRACT 8X FROM BOTH SIDES
x=13
PROOF
3(13)-3=36
36÷4=9
2(13)+1=27
27÷3=9
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