Rozwiąż równania w załączniku. Dam naj.
a) 5x-2 * 53x+4=53x-7
(x-2) + (3x+4) = 3x-7
x-2+3x+4=3x-7
4x+2=3x-7
X=-9
b) (1/3)2x+5 * 3x = 272x-1/9x
(1/3)2x+5 * (1/3)-x = 33(2x-1)/32x
(1/3)2x+5 *(1/3)-x = 36x-3/32x
(1/3)2x+5 *(1/3)-x=34x+3
(1/3)2x+5 *(1/3)-x = (1/3)-4x-3
2x+5-x=-4x-3
X+5=-4x+3
5x=-2
X=-2/5
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a) 5x-2 * 53x+4=53x-7
(x-2) + (3x+4) = 3x-7
x-2+3x+4=3x-7
4x+2=3x-7
X=-9
b) (1/3)2x+5 * 3x = 272x-1/9x
(1/3)2x+5 * (1/3)-x = 33(2x-1)/32x
(1/3)2x+5 *(1/3)-x = 36x-3/32x
(1/3)2x+5 *(1/3)-x=34x+3
(1/3)2x+5 *(1/3)-x = (1/3)-4x-3
2x+5-x=-4x-3
X+5=-4x+3
5x=-2
X=-2/5