Zadanie jest w zalaczniku ;) Daje Naj
zad. 4
a) 3x + 5x - 3x = 5x
b) -2y - 5y + 2y = -5y
c) z + z + z - z - z = z
d) m - 0,5m + m - 0,25m = -m
e) 5b - b - b + b = 5b
f) -a + a + a - a = 0
zad. 5
a) -2a + b - a - 2b + 3a = -b
b) -ab + b² + 3ab - 2ab = b²
c) x + y + 2x - y = 3x
d) 15xy - 4x + 8y - 6xy + 5x = 9xy + x + 8y
e) 0,2x² - 2y + 1,8x² + 4,3y - x = 2x² - x + 2,3y
f) -m + n - m + 0,375n = -0,375m + 0,5n
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zad. 4
a) 3x + 5x - 3x = 5x
b) -2y - 5y + 2y = -5y
c) z + z + z - z - z = z
d) m - 0,5m + m - 0,25m = -m
e) 5b - b - b + b = 5b
f) -a + a + a - a = 0
zad. 5
a) -2a + b - a - 2b + 3a = -b
b) -ab + b² + 3ab - 2ab = b²
c) x + y + 2x - y = 3x
d) 15xy - 4x + 8y - 6xy + 5x = 9xy + x + 8y
e) 0,2x² - 2y + 1,8x² + 4,3y - x = 2x² - x + 2,3y
f) -m + n - m + 0,375n = -0,375m + 0,5n