Question

Me ajuda pfvr!! a)2x-4<12 b) 2x-4<12 c) x-1+7=5x

Answer 1

Resposta:

Explicação passo-a-passo:

a) 2x-4<12

2x < 12 + 4

2x < 16

x < 16/2

x < 8

b) 2x-4<12

2x < 12 + 4

2x < 16

x < 16/2

x < 8

c) x-1+7 = 5x

x + 6 = 5x

x - 5x = -6

-4x = -6

x = -6/-4

x = 6/4

x = 3/2

Answer 2

a)2x-4<12

2x < 12 + 4

2x < 16

x < 16/2

x <8

c) x-1+7=5x

x + 6 = 5x

x - 5x = - 6

- 4x = - 6(-1)

4x = 6

x= 6/4

x= 3/2