Question

RESOLVA EM Z:
A) 3X = -45 - 2X


B) 6 ( X + 3 ) - 2 ( X - 5 ) = 20

C) -18 = 2M + 15

D) 2 ( M - 1 ) -1 = 8

Answer 1

Resposta:

A) 3X = -45 - 2X

3x + 2x = – 45

5x = – 45 (simplifica por 5)

x = – 9

B) 6 ( X + 3 ) - 2 ( X - 5 ) = 20

6x + 18 – 2x + 10 = 20

4x + 28 = 20

4x = 20 – 28

x = – 8/4

x = – 2

C) -18 = 2M + 15

2m + 15 = – 18

2m = – 18 – 15

m = – 33/2

D) 2 ( M - 1 ) -1 = 8

2m – 2 – 1 = 8

2m = 8 + 3

m = 11/2