Question

resolva:
a) 6 x+4=4 x+6
b) 10 x+8=3 x+3
c) 15 x-20=14 x+1

Answer 1

a) 6x+4=4x+6
6x-4x=6-4
2x=6-4
2x=2
x=2:2
x=1

b)10x+8=3x+3
10x-3x=3-8
7x=3-8
7x=-5
x=-5:7
x=5/7

c)15x-20=14x+1
15x-14x=1+20
x=1+20
x=21