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4x=6
x=3/2
b)2y-2+3y-5y+2-y=4
-y=4
y=-4
4x=6 /:4
x=1½
b) 2y+3y-5y-y=4+2-2
-1y=4 /: -1
y=-4
4x=6
x=6/4
x=3/2
x=1½
2y-2+3y-5y+2-y=4
-y=4
y=-4