1. (30-x)·x-(30-x+10)(x-6)=32 2. 3(25-x)-2(25+x)=5 3. 2x= \frac{7}{4} (x+10)

1.[latex]30x- x^{2} -30x+ x^{2} -10+180-6x+60-32=0=-6x+198[/latex] [latex]6x=198[/latex] [latex]x=198/6=33[/latex] 2.[latex]75-3x-50-2x-5=-5x+20=0[/latex] [latex]5x=20 [/latex] [latex]x=4[/latex] 3. [latex]2x= \frac{7}{4} x+ \frac{70}{4} [/latex] [latex] \frac{1}{4} x= \frac{70}{4} [/latex] [latex]x=70[/latex]