Ответ:
Пошаговое объяснение:
1.a. =6a +3b-21c
b. = 5x -10y +25z
c. = 1,2b - 6n -7,2k
d. = -2,8pt +3,5pl +0,84p
e. = ad +2,5bd - cd
j. = -6x + 9y - 8a +17,6
2. a. = 79* ( 62+23 - 75) = 79*10= 790
b. = 3/7 * 4/5 *(-5+1)= (-4*35+12)/35
c. = 6-9= -3
d. = 33*99 = 33*(100-1) = 3300-33=3267
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Ответ:
Пошаговое объяснение:
1.a. =6a +3b-21c
b. = 5x -10y +25z
c. = 1,2b - 6n -7,2k
d. = -2,8pt +3,5pl +0,84p
e. = ad +2,5bd - cd
j. = -6x + 9y - 8a +17,6
2. a. = 79* ( 62+23 - 75) = 79*10= 790
b. = 3/7 * 4/5 *(-5+1)= (-4*35+12)/35
c. = 6-9= -3
d. = 33*99 = 33*(100-1) = 3300-33=3267