rozwiązywanie równań ; prosze o pomoc jestem z tego kompletnie zielona wiem tylko że trzeba dodawać x
1] 5x - 1 = 4x
2] x-10 = 6- x
3] 2 {x + 1} = 12
4] -2 {x - 3} =-4
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1] 5x - 1 = 4x
5x-4x=1
x=1
2] x-10 = 6- x
2x=16 |:2
x=8
3] 2 {x + 1} = 12
2x+2=12
2x=10 |:2
x=5
4] -2 {x - 3} =-4
-2x+6=-4
-2x=-4-6
-2x=-10 |:(-2)
x=5
Licze na naj..
1] 5x - 1 = 4x
x - 1 = 0
x = 1
2] x-10 = 6- x
2x - 10 = 6
2x = 16
x = 8
3] 2 {x + 1} = 12
2x + 2 = 12
2x = 10
x = 5
4] -2 {x - 3} =-4
-2x + 6 = -4
-2x = -10
x = 5