Question

1- Resolva as equações :
a) 4x+8= 2x+20
b) 10x -4 = 4x+20
c) 5x+3 = 15+2x
d) 11x -10 = 23
e) 25+x = 4x+30

Answer 1

a) 4x-2x=20-8
2x=12
x=6
b)10x-4x=20+4
6x=24
x=4
c)5x-2x=15-3
3x=12
x=4
d) 11x=23+10
11x=33
x=3
e) x-4x=30-25
-3x=5
x=5/-3