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a) 4a + (3b-2) = 4a + 3b - 2
b) 7a + (2b-4) = 7a + 2b - 4
c) 6x+t+(6yy+7) = 6x + t + 6yy + 7
d) 7a-(2b+1) = 7a - 2b - 1
e) 2a-(6b-8c) = 2a - 6b + 8c
Zadanie 2
a) 4 (3x5) = 4 * 15 = 60
b) 5(8m+2) = 40m + 10
c) -2(5+8) = -10 - 16 = -26
d) -3(2a-7) = -6a + 21
e) 7 (2-a-3b) = 14 - 7a - 21b
f) -3 (5p +2c + 1/2) = -15p - 6c - 1 1/2
g) 2 (2a+5-0,75b) = 4a + 10 - 1,5b
h) -2(3b-4a+0,5) = -6b + 8a - 1
b)71 + 2b - 4
c)6 + t + 6yy + 7
d) 7a-2b-1
e) 2a-6b+8c
2.b) 40m+10
c) -10 - 16
d) -6a + 21
e) 14 -a -21b
f) -10p - 6c -3/2
g) 4a +10 - 1,5b
h)-6b +8a -1