Question

resolva as equaçoes do 1 grau
a)7x+1-5x=9
b)y+9y+5=-15
c)17x-1=15x+3

Answer 1

Resposta:

a) 4

b)(-2)

c)(2)

Explicação passo-a-passo:

a) 7x + 1 - 5x = 9

7x - 5x = 9 - 1

2x = 8

x = 8/2 = 4

b-) y + 9y + 5= - 15

10y = -15 - 5

10y = -20

y = -20/10

y= (-2)

c-)

17x - 1 = 15x + 3

17x - 15x = 3 + 1

2x = 4

x= 4/2

x= 2

Answer 2

a) 7x + 1 - 5x = 9

7x - 5x = 9 - 1

2x = 8

x = $\frac{8}{2}$

x = 4

b) y + 9y + 5= - 15

10y = -15 - 5

10y = -20

y = $\frac{-20}{10}$

y= -2

c) 17x - 1 = 15x + 3

17x - 15x = 3 + 1

2x = 4

x= $\frac{4}{2}$

x= 2

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