Question

Resolva as seguintes equações:
a) 3x=15
b) 2x=14
c) 4x= -12
d) 7x= -21
e) 13x=13
f) 9x= -9

Answer 1

a) 3x = 15 
    x=15/3
     x = 5

b) x=14/2
    x=7
c) x = -12/4
    x= -3
d) x = -21/7
     x= -3
e) x = 13/13
    x=1
f) x= -9/9
   x = -1

Answer 2

a) 3x=15
x=15/3
x=5

b) 2x=14
x=14/2
x=7

c) 4x=-12
x=-12/4
x=-3

d)7x=-21
x=-21/7
x=-3

e)13x=13
x=13/13
x=1

f) 9x=-9
x=-9/9
x=-1

espero ajudar ♥