September 2018 1 13 Report

Potrzebuje jak najszybciej pelnych rozwiazan tych zadan :) Z góry dziekuujee :*
1.Rozwiąz rownania:
a) -7(2x+1)=4

b)\frac{3-x}{2}+\frac{x+2}{2}=\frac{1}{2}

c)\frac{1}{4}x-\frac{x-1}{4}=\frac{1}{4}

2.Rozwiaz uklady rownan

a)\begin{cases} x-y=2\\\frac{1}{2}x-1=\frac{1}{4}y\\\end{cases}
b)\begin{cases} -x-y=2\\2(3x+y)=-20\\\end{cases}

c)\begin{cases} 4x+3y=54\\\frac{1}{3}x=4(1+\frac{1}{8}y)\\ \end{cases}


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