Oblicz. Błagam pomuszcie!
9 (x + 8 ) = 9x +8
- (4+x) = 2 (3 -x )
4 (a - 1) = 6 (1 +a)
9x+72=9x+8
72=8
równanie sprzeczne
-4-x=6-2x
-x+2x=6+4
x=10
4a-4=6+6a
-4-6=6a-4a
-10=2a
a=-5
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9 (x + 8 ) = 9x +8
9x+72=9x+8
72=8
równanie sprzeczne
- (4+x) = 2 (3 -x )
-4-x=6-2x
-x+2x=6+4
x=10
4 (a - 1) = 6 (1 +a)
4a-4=6+6a
-4-6=6a-4a
-10=2a
a=-5