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2x+3y=4
2y=6+3x |:2
2x+3y=4
y=3+1,5x
2x+3(3+1,5x)=4
y=3+1,5x
2x+9+4,5x=4
y=3+1,5x
6,5x= 4-9
y=3+1,5x
6,5x=-5 | :6,5
y=3+1,5x
x=-5/6.5
y= 3+ 1,5*(-5/6,5)
x=-5/6.5
y=3+ -7,5/6.5