Question

determine o valor de x nas equações do 1 grau abaixo
a)18x-43=65
b)2x+6=x+18
c)5x-3=2x+9
d)13x-16=14-17x
e)5m-12=7m+4
f)3x-5=x-3
g)-6x=4x-26

Answer 1

a)18x-43=65

18X = 65+43
18X = 108
X =108/18
X= 6


b)2x+6=x+18

2X- X = 18-6
X = 12

c)5x-3=2x+9

5X - 2X = 9 + 3
3X = 12
X = 4

d)13x-16=14-17x
13X +17X = 16+14
30X = 30 
X = 1

e)5m-12=7m+4
5M -7M = 12 + 4 
-2M = 16
M= -8

f)3x-5=x-3
3X - X = 5 - 3 
2X = 2
X=1

g)-6x=4x-26
-6X -4X = -26 

-10X = -26
X = 2,6

Answer 2

a)18x=65-43
18x=22
x=22=1,888......
18