Odpowiedź:
a) x = 26
0,5x = 7 + 6, 0,5x = 13, x = 26
b) x = -
-2x = 6 + 3, -2x = 9
c) x = -1
5x - 8x = 3, -3x = 3
d) x = 2
3x + x = 6 + 2, 4x = 8
e) x =
0,5x + 0,2x = 3 + 0,2, 0,7x = 3,2
f) x =
-2x + 3 = 5x - 2, -2x - 5x = -2 - 3, -7x = -5
g) x =
3 - x + 3 = x - 3, -x -x = -3 -6, -2x = -9
h) x = 0
x + 3 - (3 - x) = x, 3 - 3 + x = 0
i) x = 0
2x - 1 + 1 - 2x = x, 0 + 0 = x, 0 = x
Mam nadzieję, że pomogłam :)
08.03.2021
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Odpowiedź:
a) x = 26
0,5x = 7 + 6, 0,5x = 13, x = 26
b) x = -
-2x = 6 + 3, -2x = 9
c) x = -1
5x - 8x = 3, -3x = 3
d) x = 2
3x + x = 6 + 2, 4x = 8
e) x =
0,5x + 0,2x = 3 + 0,2, 0,7x = 3,2
f) x =
-2x + 3 = 5x - 2, -2x - 5x = -2 - 3, -7x = -5
g) x =
3 - x + 3 = x - 3, -x -x = -3 -6, -2x = -9
h) x = 0
x + 3 - (3 - x) = x, 3 - 3 + x = 0
i) x = 0
2x - 1 + 1 - 2x = x, 0 + 0 = x, 0 = x
Mam nadzieję, że pomogłam :)
08.03.2021