oblicz:
8z - 13 + 7 = 15z + 9
6(2x + 1 ) = 3(3x - 8)
8z - 15z = 9 - 7 + 13
-7z = 15 /:(-7)
z = -15/76(2x + 1 ) = 3(3x - 8)
12x + 6 = 9x - 24
12x - 9x = -24 - 6
3x = -30 /:3
x = - 10
8z - 13 + 7 = 15z + 9 /-15z+9
8z-15z-13-9+7=0
-7z-15=0 /+15
-7z=15 /: -7
z=15/(-7)
z= - 15/7
6(2x + 1 ) = 3(3x - 8) /-3(3x-8)
6(2x+1)-3(3x-8)=0
6(2x+1)-1*3(3x-8)=0
3x+30=0 / -30
3x= -30 /:3
x= -30/3
x= -10
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8z - 13 + 7 = 15z + 9
8z - 15z = 9 - 7 + 13
-7z = 15 /:(-7)
z = -15/7
6(2x + 1 ) = 3(3x - 8)
12x + 6 = 9x - 24
12x - 9x = -24 - 6
3x = -30 /:3
x = - 10
8z - 13 + 7 = 15z + 9 /-15z+9
8z-15z-13-9+7=0
-7z-15=0 /+15
-7z=15 /: -7
z=15/(-7)
z= - 15/7
6(2x + 1 ) = 3(3x - 8) /-3(3x-8)
6(2x+1)-3(3x-8)=0
6(2x+1)-1*3(3x-8)=0
3x+30=0 / -30
3x= -30 /:3
x= -30/3
x= -10