Question

resolva as equaçoes a) 1O-2X=3X B)X-3=6+4X C) (7X-8).2=6.(3X-4) D) 16X-6-7X=15+2X

Answer 1

Oi Sirlene

a) 10 - 2x = 3x,  5x = 10,  x = 2

b) x - 3 = 6 + 4x,  3x = -9, x = -3

c) (7x - 8)*2 = 6*(3x - 4)

14x - 16 = 18x - 24

18x - 14x = 24 - 16

4x = 8 

x = 2

d) 9x - 6 = 2x + 15,  7x = 21, x = 3

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