Question

b) 16x - 32 = 0
c) 1,7 + 2,5x = 4,2
d) 2x + 17,50 = 43,50​

Answer 1

Resposta e explicação passo-a-passo:

$b) 16x - 32 = 0\\16x = 32\\x = 2\\\\c) 1,7 +2,5x = 4,2\\2,5x = 4,2 - 1,7\\2,5x = 2,5\\x = 1\\\\d) 2x +17,50 = 43,50\\2x = 43,50 - 17,50\\2x = 26\\x = 26:2\\x = 13$

Espero ter ajudado :)

Answer 2

b) 16x - 32 = 0
16x = 32
x = 32/16
x = 2

c) 1,7 + 2,5x = 4,2
2,5x = 4,2 - 1,7
2,5x = 2,5
x = 2,5/2,5
x = 1

d) 2x + 17,5 = 43,5
2x = 43,5 - 17,5
2x = 26
x = 26/2
x = 13