Ola Joao Victor
não precisa do mmc , multiplique em cruz
5/(x + 3) = 2/(3x - 4)
5*(3x - 4) = 2*(x + 3)
15x - 20 = 2x + 6
13x = 26
x = 2
pronto
mmc=(x+3)(3x-4)
5(3x-4)=2)x+3)
15x-20=2x+6
15x-2x=6+20
13x=26
x=26/13
z=2
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Verified answer
Ola Joao Victor
não precisa do mmc , multiplique em cruz
5/(x + 3) = 2/(3x - 4)
5*(3x - 4) = 2*(x + 3)
15x - 20 = 2x + 6
13x = 26
x = 2
pronto
mmc=(x+3)(3x-4)
5(3x-4)=2)x+3)
15x-20=2x+6
15x-2x=6+20
13x=26
x=26/13
z=2