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[latex] \left \{ {{25+3b=5a} \atop {14-3b=4a}} \right. \left \{ {{-5a+3b+25=0} \atop {-4a-3b+14=0}} \right. (-5a+3b+25)+(-4a-3b+14)=0 -5a+3b+25-4a-3b+14=0 -9a+39=0 -9a=-39 [/latex] [latex]a= 4\frac{1}{3} [/latex] [latex]14-3b=4* 4\frac{1}{3} [/latex] [latex]-3b= 3\frac{1}{3} [/latex] [latex]b=- 1\frac{1}{9} [/latex] Ответ:([latex] 4\frac{1}{3}; -1\frac{1}{9} [/latex])