y-3=7
4(z+2)=8
0,9b-17=19
3x-2(z+1)=3+3x
8(2x-1)+3(4-5x)=0
3(2a-3)=15
6-4(e-3)=22
y-3=7 y=7+3 y=10
4(z+2)=8 4z+8=8 4z=8-8 4z=0/:4 z=00,9b-17=19 0,9b=19+17 0,9b=36 9b=360/:9 b=403x-2(z+1)=3+3x 3x-2z+2=3+3x 3x-2z-3x=3-2 -2z=-1/:(-2) z=8(2x-1)+3(4-5x)=0 16x-8+12-15x=0 x=8-12 x= -43(2a-3)=15 6a-9=15 6a=15-9 6a=6/:6 a=16-4(e-3)=22 6-4e+12=22 -4e=22-12-6 -4e=4/:(-4) e=-1
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y-3=7 y=7+3 y=10
4(z+2)=8 4z+8=8 4z=8-8 4z=0/:4 z=0![\frac12 \frac12](https://tex.z-dn.net/?f=%5Cfrac12)
0,9b-17=19 0,9b=19+17 0,9b=36 9b=360/:9 b=40
3x-2(z+1)=3+3x 3x-2z+2=3+3x 3x-2z-3x=3-2 -2z=-1/:(-2) z=
8(2x-1)+3(4-5x)=0 16x-8+12-15x=0 x=8-12 x= -4
3(2a-3)=15 6a-9=15 6a=15-9 6a=6/:6 a=1
6-4(e-3)=22 6-4e+12=22 -4e=22-12-6 -4e=4/:(-4) e=-1