Question

determine o valor numérico de:

a) 3x-2y "X=2 Y= 3"


b)5x+2y "X=3 Y=4"

c) 8x-4y "X=2 Y=5"

d) 2.(x-y)+3y "X=10 Y=3"

Answer 1

a)3.2-2.3
6-6
0

b)5.3+2.4
15+8
23

c)8.2-4.5
16-20
4

d)2.(10-3)+3.3
20-6+9
14+9
23


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