1. 2(3x-5) + 4 = 6+2(5x-1)
2. 4x+5 (2x-1)=8
3. _x+2_ + _5x -2_ = _6x-1_
.......3 5 15
1. 2(3x-5)+4=6+2(5x-1)2*3x-2*5+4=6+2*5-2*16x-20+4=6+10-26x-24=146x=14+246x=38/:6
x=6,3
2. 4x+5(2x-1)=8
4x+5*2x-5*1=84x+10x-5=814x-5=814x=8+514x=13/:14x=0,9
w trzecim trzeba uzupełnic? tak?
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1. 2(3x-5)+4=6+2(5x-1)
2*3x-2*5+4=6+2*5-2*1
6x-20+4=6+10-2
6x-24=14
6x=14+24
6x=38/:6
x=6,3
2. 4x+5(2x-1)=8
4x+5*2x-5*1=8
4x+10x-5=8
14x-5=8
14x=8+5
14x=13/:14
x=0,9
w trzecim trzeba uzupełnic? tak?