September 2018 1 7 Report

Rozwiąż układ równań.

a) x+y=20

2x+3y=52

b)2x+y=16

5x-6y=0

c)x+y=50

\frac{x}{2}-\frac{y}{3}=0

d)\frac{x}{2}-1,5-y=-3

\frac{x}{3}-\frac{y}{2}=\frac{1}{3}

e)\frac{2(x+y)}{3}+8=\frac{4}{3}(2x-y)-\frac{x-2y}{2}

\frac{x+1}{3}+1=\frac{3-y}{4}

f)\frac{x}{2}+\frac{y}{4}=2x+3y-\frac{1}{2}

x(y-x)-6=y(x-1)-x(x+2)


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