Oblicz układ równań:
-b/a=-5
c/a=3
a+b+c=27
-b/a = -5
c/a = 3 - w obu równaniach mamy A, więc należy z nich wyliczyć b i c i podstawićdo wzoru
-b/a = -5 /* -1
b/a = 5/*a
b = 5a
c/a = 3/ *a
c = 3a
a + 5a + 3a = 27
9 a = 27/9
a = 3
b = 5a = 15
c = 3a = 9
-b/a=-5 /*a
c/a=3 /*a
-b=-5a
c=3a
b=5a
a+5a+3a=27
9a=27 /:9
a=3
b=5*3
c=3*3
b=15
c=9
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-b/a = -5
c/a = 3 - w obu równaniach mamy A, więc należy z nich wyliczyć b i c i podstawićdo wzoru
-b/a = -5 /* -1
b/a = 5/*a
b = 5a
c/a = 3/ *a
c = 3a
a + 5a + 3a = 27
9 a = 27/9
a = 3
b = 5a = 15
c = 3a = 9
-b/a=-5 /*a
c/a=3 /*a
a+b+c=27
-b=-5a
c=3a
a+b+c=27
b=5a
c=3a
a+b+c=27
b=5a
c=3a
a+5a+3a=27
b=5a
c=3a
9a=27 /:9
a=3
b=5*3
c=3*3
a=3
b=15
c=9