Question

Resolva as equaçoes
A) 3x-2=10
B) 5+x=16
C) 4x-20=2+3x
D)X/2=5
E) x-3=7
F) 2x+6=11+x

Answer 1

a) 3x - 2 = 10
    3x = 10 +2
3x = 12
x= 12/3
x= 4

b) 5+x=16
x=16 - 5
x= 11

c) 4x-20= 2+3x
4x - 3x = 2 + 20
x = 22

d) x/2 = 5
x = 5.2
x= 10

e) x-3=7
x= 7 + 3
x= 10

f) 2x+6=11+x
2x - x = 11 - 6
x = 5

Answer 2

A) 3x-2=10
3x=10+2
3x=12
x =12/3
x=4

B) 5+x =16
x=16-5
x= 11

C) 4x -20=2+3x
4x - 3x =2 +20
x=2

D) x / 2 =5
x=5.2
x = 10

E) x-3 = 7
x = 7 +3
x = 10
 
F) 2x + 6 = 11 + x
2x -x = 11 - 6
x = 5