Question

determine a soluçao da equaçao
a) 2x=3
b) 2x-4=x-2
c) 3x=-9
d)3x+6=9
e) 4x+8=5

Answer 1

a) 2x=3 ==> x = 3/2

b) 2x-4=x-2==> 2x-x= 4-2==> x= 2

c) 3x=-9 ==>x = -9/3 ==> x= - 3

d)3x+6=9==> 3x = 9-6==> 3x= 3==> x = 1

e) 4x+8=5==>4x=5-8==>4x= - 3==> x = - 3/4

Answer 2

a)2x=3
[x=3/2]
b)2x-4=x-2
2x-x=-2+4
1x=2
x=2/1
[x=2]
c)3x=-9
x=-9/3
[x=-3]
d)3x+6=9
3x=9-6
3x=3
x=3/3
[x=1]
e)4x+8=5
4x=5-8
4x=-3
[x=-3/4]

Espero ter ajudado!!!