(2x+7)/(x+1) = 3 |*(x+1)
2x+7 = 3x+3
2x-3x = 3-7
-x = -4 |*(-1)
x = 4
Sprawdzenie
(2*4+7)/(4+1) = (8+7)/5 =15/5 = 3 [tys]
W firmie pracuj 4 pracowników i dyrektor.
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(2x+7)/(x+1) = 3 |*(x+1)
2x+7 = 3x+3
2x-3x = 3-7
-x = -4 |*(-1)
x = 4
Sprawdzenie
(2*4+7)/(4+1) = (8+7)/5 =15/5 = 3 [tys]
W firmie pracuj 4 pracowników i dyrektor.