Question

qual o resultado de 4x+y=0 com o valor de x=3 e -3

Answer 1

a)
4x + y = 0

x = 3
4.3 + y = 0
12 + y = 0
y = - 12
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b)
x = - 3

4x + y = 0
4.(-3) + y = 0
- 12 + y = 0
y = 12