a) 2 * x = -28 /2 x = -14 spr. 2*-14=-28 b)-20 * x = 4 / -20 x = -⁴/₂₀ spr. : -20* -⁴/₂₀=4 c) x * -3 = -18 / -3 x= 6 spr. : 6*-3=-18 d) 64 / x = -16 /*x 64=-16x /-16 x=-4 spr. : -4*-16=64 e) -36 / x = -9 /*x -36=-9x / -9 x=4 spr. : -9*4=-36 f) x / -3 = 45 /*-3 x=-105 spr. : -105/-3=45 2) a)-8 / x = 4 /*x -8=4x /4 x=-2 b)10 / x = -2 /*x 10=-2x / -2 x=-5 c) x / -25 = 4 / *-25 x=-100 d) -4 * x = -8 / -4 x=2 e) x * -12 = -36 /-12 x=3 f) x / -2 = -18 /*-2 x=36
2*x=-28 |:2 x=-14 spr. -14*2=-28 -28=-28 -20*x=4 |:(-20) x=4/-20 x=-1/5 spr. -20*(-1/5)=4 20/5=4 4=4 x*-3=-18 |:(-3) x=6 spr. 6*(-3)=-18 -18=-18 64/x=-16 |:64 x=-16/64 x=-1/4 spr. 64*(-1/4)=-16 -16=-16 -36/x=-9 x=4 spr: -36/4=-9 -9=-9 x/-3=45|*(-3) x=-135 spr. -135/-3=45 45=45 -8/x=4 |:(-8) x=-2 10/x=-2 |:10 x=-5 x/-25=-4|*(-25) x=100 -4*x=-8|:-4 x=2 x*-12=-36|+12 x=-24 x/-2=-18 |*(-2) x=36
a) 2 * x = -28 /2 x = -14 spr. 2*-14=-28 b)-20 * x = 4 / (-20) x = -⁴/₂₀ spr. : -20* -⁴/₂₀=4 c) x * -3 = -18 /(-3) x= 6 spr. : 6*-3=-18 d) 64 / x = -16 /*x 64=-16x /-16 x=-4 spr. : -4*-16=64 e) -36 / x = -9 /*x -36=-9x / -9 x=4 spr. : -9*4=-36 f) x / -3 = 45 /*-3 x=-105 spr. : -105/-3=45 2) a)-8 / x = 4 /*x -8=4x /4 x=-2 b)10 / x = -2 /*x 10=-2x / -2 x=-5 c) x / -25 = 4 / *-25 x=-100 d) -4 * x = -8 / -4 x=2 e) x * -12 = -36 /-12 x=3 f) x / -2 = -18 /*-2 x=36
