Question

nn estou conseguindo resolver alguém pode me mandar as respostas ​

Answer 1

Resposta:

a)4 b)9 c)3 d)-33/2 e)11/2 f)34/6 g)5/72

Explicação passo-a-passo:

a) 40 = 10x  (=) x = 40/10 = 4

b) 3x + 2x = -45   (=)5x = -45   (=)x =-45/5 = 9

c) 6x + 18 -2x + 10 = 20 (=)4x = 40 - 28 (=)x = 12/4 = 3

d) -18 - 15 = 2x (=) x = -33/2

e)2x - 2 -1 = 8 (=) 2x = 11 (=) x = 11/ 2

f ) 2x - 14 - 20 + 4x = 2 (=) 6x = 34 (=) x = 34/6

g) (3y/8) -(y/3) = -(5/2) + (5/6) (=) y/24 = 10/6 (=) y = 10/(24*6)