• Choice K
    3(4x5)=2(15x)-3(4x-5)=2(1-5x)
    12x+15=210x-12x+15=2-10x
    152=10x+12x15-2=-10x+12x
    13=2x13=2x
    2x=132x=13
    x={13}{2}x=\frac\{13\}\{2\}

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