Zapisz krócej : a) 6x + 4x + 5x
b) 2a + 5a - 3a
c) 3b + 2b -5b
d) 3b + 8b
e) 17x - 9x
f) 4y + (-3y)
g) 8z - 15z
h) 6x - 2x + 1 i jedna druga x
i) 5t - 7t + ( - 2,5t )
Proszę!!
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a) 6x + 4x + 5x = 15x
b) 2a + 5a - 3a = 4a
c) 3b + 2b - 5b = 0
d) 3b + 8b = 11b
e) 17x - 9x = 8x
f) 4y + (-3y) = 4y - 3y = y
g) 8z - 15z = -7z
h) 6x - 2x + 1 1/2x = 4x + 1 1/2x = 5 1/2x
i) 5t - 7t + ( - 2,5t ) = -2t - 2,5t = -4,5t
pozdrawiam :)
a) 15x
b)4a
c)0b
d)11b
e)8x
f)1y
g)-7z
h)5 i jedna druga
i)-4,5t