13x-4=3x-36
13x-3x=36+4
10x=40/:10
x=4
13x - 4 = 3x -36
13x - 3x = -36+4
10x = -32
x = -3,2
Sprawdzenie
13*(-3,2) -4 = 3*(-3,2)-36
-41,6 - 4 = -9,6 -36
-45,6 = -45,6
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13x-4=3x-36
13x-3x=36+4
10x=40/:10
x=4
13x - 4 = 3x -36
13x - 3x = -36+4
10x = -32
x = -3,2
Sprawdzenie
13*(-3,2) -4 = 3*(-3,2)-36
-41,6 - 4 = -9,6 -36
-45,6 = -45,6