Question

Se știe că a egal cu 11 și b plus c egal cu 8 calculați: 2-a plus 3b plus 3 c. 10 a plus 9 b plus 9 c. A b plus AC plus 25. A b plus AC minus 34. 7 b plus 7c plus9a

Answer 1

a = 11

b + c = 8

a) 2 - a = -9

3b + 3c = 3 ( b + c ) = 8 * 3 = 24

24 - 9 = 15

b) 10a + 9 ( b + c ) = 110 + 72 = 182

c) a ( b + c ) + 25 = 88 + 25 = 113

d) a ( b + c ) - 34 = 88 - 34 = 54

e) 7 ( b + c ) + 9 a = 56 + 99 = 155

Answer 2

a = 11; b + c = 8

2 - a + 3 b + 3 c = 2 - 11 + 3 ( b + c ) = - 9 + 3 × 8 = - 9 + 24 = 15

10 a + 9 b + 9 c = 10 × 11 + 9 × ( b + c ) = 110 + 9 × 8 = 110 + 72 = 182

ab + ac + 25 = a × ( b + c ) + 25 = 11 × 8 + 25 = 88 + 25 = 113

ab + ac - 34 = a × ( b + c ) - 34 = 11 × 8 - 34 = 88 - 34 = 54

7 b + 7 c + 9 a = 7 × ( b + c ) + 9 × 11 = 7 × 8 + 99 = 56 + 99 = 155