Question

1)resolva as questões de 1 Grau,no conjunto universo dos números Reais: a)7×1=6×+6
b) 5×-3=2×-9
c)×+4×=15-(×-6)
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Answer 1

Resposta:

a)

$7x + 1 = 6x + 6$

7x-6x= 6-1

x= 5

b)

$5x - 3 = 2x - 9$

5x-2x= -9+3

3x= -6

x= -6/3

x= -2

c)

$x + 4x = 15 - (x - 6)$

5x= 15x-90

5x-15x= -90

10x= -90

x= -90/-10

x= 9