Rozwiąz równanie
a)-2x+4=5x+25
b)-8z+5=-z-1
c)6-5x=2x-7
prosze
a) -2x + 4 = 5x + 25
-2x - 5x = 25 - 4
-7x = 21 |:(-7)
x = -3
b) -8z + 5 = -z - 1
-8z + z = -1 - 5
-7z = +6 |:(-7)
z = 6/7
c) 6 - 5x = 2x -7
-5x - 2x = -7 - 6
-7x = -13 |:(-7)
x = 1 6/7
a) -2x+4=5x+25
-2x-5x=25-4
-7x=21/:(-7)
x=-3
-8z+z=-1-5
-7z=-6/:(-7)
z=6/7
-5x-2x=-7-6
-7x=-13/:(-7)
x=13/7
x=1 i 6/7
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a) -2x + 4 = 5x + 25
-2x - 5x = 25 - 4
-7x = 21 |:(-7)
x = -3
b) -8z + 5 = -z - 1
-8z + z = -1 - 5
-7z = +6 |:(-7)
z = 6/7
c) 6 - 5x = 2x -7
-5x - 2x = -7 - 6
-7x = -13 |:(-7)
x = 1 6/7
a) -2x+4=5x+25
-2x-5x=25-4
-7x=21/:(-7)
x=-3
b)-8z+5=-z-1
-8z+z=-1-5
-7z=-6/:(-7)
z=6/7
c)6-5x=2x-7
-5x-2x=-7-6
-7x=-13/:(-7)
x=13/7
x=1 i 6/7