-2x+3=5 i 0,75y+7=-1 te dwa tylko rozwiążcie
-2x+3=5
-2x = 5-3
-2x = 2 /: (-2)
x = -1
0,75y+7=-1
0,75y = -1-7
0,75y = -8/:0,75
y= -10,(6)
-2x=5-3
-2x=2 /:(-2)
x=-1
0,75y=-1-7
0,75y=-8 /:0,75
y=-10 i 2/3
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-2x+3=5
-2x = 5-3
-2x = 2 /: (-2)
x = -1
0,75y+7=-1
0,75y = -1-7
0,75y = -8/:0,75
y= -10,(6)
-2x+3=5
-2x=5-3
-2x=2 /:(-2)
x=-1
0,75y+7=-1
0,75y=-1-7
0,75y=-8 /:0,75
y=-10 i 2/3