Toán Lớp 7: Tìm x,y Biết : $\frac{x-1}{3}$ = $\frac{x+1}{2}$
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Toán Lớp 7: Tìm x,y Biết : $\frac{x-1}{3}$ = $\frac{x+1}{2}$
Comments ( 2 )
=> (x-1).2 = (x+1).3
=> 2x-2=3x+3
=> 2x-3x=2+3
=>-1x=5
=>x=-5
vậy x=-5
-chúc bn học tốt-