Dane jest równanie i jego pierwiastek.Wyznacz liczbę a. d) 5(x+1)-(x-2)=a(x+3);x=-4
5(x+1)-(x-2)=a(x+3)
-15 +6 = -a
a=9
5x-5-x+2=ax+3a
4x-3=a(x+3)
a=4x-3/x+3
a=4*(-4)-3/-4+3
a=-16-3/-1
a=-19/-1
a=19
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5(x+1)-(x-2)=a(x+3)
-15 +6 = -a
a=9
5(x+1)-(x-2)=a(x+3)
5x-5-x+2=ax+3a
4x-3=a(x+3)
a=4x-3/x+3
a=4*(-4)-3/-4+3
a=-16-3/-1
a=-19/-1
a=19