rozwiąż równanie i sprawdź otrzymany wynik np.  4x + 2 = 8 4x = 6  x=1.5 spr. L= 4*1.5+2=8 P=8 a) 7x - 13 = 8 b)3x - 4 = 4x c)3x + 9 = -3x + 9 d) -27x+1 = 2x + 59 e) 45x - 19 = 19x - 45 Proszę o szybką odpowiedź

a) 7x - 13 = 8 7x= 8 + 13 7x = 21 x= 3   spr: L = 7*3 - 13 = 8 = P   b) 3x - 4 = 4x 3x - 4x = 4 -x = 4/*(-1) x = -4   spr: L = -x = -4 =P   c)3x + 9 = -3x +9 3x + 3x = 9-9 6x = 0/:6 x=0   spr; L = 6*0 = 0 = P    d) -27x+1 = 2x +59 -29x = 58/:(-29) x = -29/58 x=-1/2   spr; L = -29 * (-1/2) = 58 = P     e) 45x - 19 = 19x - 45 45x - 19x = -45 + 19 26x = -26/:26 x=-1   spr; L= 26*(-1) = 26 =P

a) 7x-13=8 7x = 21 x = 3   spr. L=7*3 -13 = 21-13 = 8 P=8   b) 3x - 4 = 4x -x = 4 x = -4 spr. L= 3*-4 - 4 = -16 P= 4*-4=-16   c) 3x +9 = -3x + 9 6x = 0 x = 0 spr. L=3*0 +9= 9 p= -3*0 +9 = 9   d) -27x +1 = 2x + 59 -29x = 58 x = -2 spr. L=-27*-2 +1 = 55 P= 2*-2 + 59 = 55   e) 45x-19 = 19x - 45 26x = -26 x=-1 spr. L=45*-1 - 19 = -64 P= 19*-1 - 45 = -64