Rozwiąż równanie a) b)c)d)
A) 3x -4 = 5x +2
2x = - 6
x = - 3
B) 2(x + 1) = 4 - x
2x +2 = 4-x
3x = 2
x = 2/3
C) x/6 + 2 = (x + 1)/3 -x (mnożymy razy 6)
x+12= (6x + 6)/3 - 6x (mnożymy razy 3)
3x + 36 = 6x + 6 - 18x
3x + 36= -12x +6
-15x = 30
x= -2
D) (x+1)/3 - [2(-1+x)/9] = 1/3 - x/9 (mnożymy razy 9)
(9x + 9)/3 - 2(-1+x) = 3 - x (mnożymy razy 3)
9x+9 - 6(-3+3x) = 9 - 3x
9x + 9 + 18 -18x= 9-3x
-9x + 27= 9-3x
-6x = - 18
x= 3
Proszę:) Liczę na naj:P
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A) 3x -4 = 5x +2
2x = - 6
x = - 3
B) 2(x + 1) = 4 - x
2x +2 = 4-x
3x = 2
x = 2/3
C) x/6 + 2 = (x + 1)/3 -x (mnożymy razy 6)
x+12= (6x + 6)/3 - 6x (mnożymy razy 3)
3x + 36 = 6x + 6 - 18x
3x + 36= -12x +6
-15x = 30
x= -2
D) (x+1)/3 - [2(-1+x)/9] = 1/3 - x/9 (mnożymy razy 9)
(9x + 9)/3 - 2(-1+x) = 3 - x (mnożymy razy 3)
9x+9 - 6(-3+3x) = 9 - 3x
9x + 9 + 18 -18x= 9-3x
-9x + 27= 9-3x
-6x = - 18
x= 3
Proszę:) Liczę na naj:P