Question

resolva:

a)5+6x=5x+2

b)x+2-1-3=x

c)2-4x=32-18x+12

d)2x-1-3+x+4

e)3x-2x-3=0

Answer 1

a)5+6x=5x+2. -5x+6x=2-5
1x=-3
x=-3/1
x=-3

d)2x-1-3+x+4 2x+x -1-3+4
3x. 0
x=3/0
x=0

e)3x-2x-3=0
3x-2x=0+3
1x=3
x=3/1
x=3

b)x+2-1-3=x
x-x=-2+1+3
0x=2

c)2-4x=32-18x+12
+18x-4x=32+12-2
14x=42
x=42/14
x=3