-Wyrażenia algebraiczne ROZWIĄŻ RÓWNANIA 2x+4=7 5(2X - 1)=8 -(2X-1)+(3X+3)=4 x+4/2=5 NP:1/2(x-1)=4 1/2x-1/2=4 |+1/2 1/2x-1/2-1/2+4+1/2 1/2x+4 i 1/2 |:2 1/2 (razy) x:1/2 =4 i 1/2 (razy) 1/2 |COŚ W TYM STYLU|

2x = 7-4 2x = 3 x= 1.5 5(2x-1)=8 10x -5 =8 10x = 13 x=1 3/10   ( ulamek ) -(2x-1)+(3x+3)=4 -2x+1+3x+3=4 -2x + 3x = -1 -3 +4  1x = 0 x = 0 x+4/2=5 / 4 4x+2=10 4x=8 x=2

2x+4=7 | -4 2x=3 | ÷2 x=1,5 5(2x-1)=8 10x-5=8 | +5 10x=13 | ÷10 x=1,3 -(2x-1)+(3x+3)=4 -2x+1+3x+3=4 x+4=4 | -4 x=0 x+ 4/2 =5 x+2=5|-2 x=3