Question

2) (1,2) Resolva as equações a seguir:

a) x + 1 = 6

b) 2x + 7 = 18

c) 4x + 1 = 3x – 9

d) 10x + 60 = 12x + 52

e)18x - 43 = 65

f) 23x - 16 = 14 - 17x *

Answer 1

$a)x + 1 = 6 = x = 6 - 1 \\ b)2x = 18 - 7 = x = 11 \div 2 = 5.5 \\ c)4x - 3x = - 1 - 9 \\ 1x = - 10 = x = - 10 \\ d)10x + 60 = 12x + 52 \\ 12x - 10x = 60 - 52 \\ 2x = 8 = x = 8 \div 2 = x = 4 \\ e)18x - 43 = 65 \\ 18x = 65 + 43 \\ 18x = 108 = x = 108 \div 18 = x = 11 \\f)23x - 16 = 14 - 17x \\ 23x + 17x = 16 + 14 \\ 40x = 30 \\ x = 30 \div 40 = x = 0.72$

Espero ter ajudado