Question

*GENTE É URGENTE*
Resolva as equações:
A) 6X=2X+16
B)2X-5=X+1
C)4X-1=5(X-1)
D)5X-3(X121=15)
E)2X+3X+9=8(6-X)
F)3.(5-X)-3.(1-2X)=42

Answer 1

a) 6x=2x+16
6x-2x=16
4x=16
x=16/4
x=4

b)2x-5=x+1
2x-x=1+5
x=6

c)4x-1=5(x-1)
4x-1=5x-5
4x-5x=-5+1
-x=-4
x=4

d)5x-3(x121=15)
5x-3x-363=-45
2x=-45+363
2x=318
x=318/2
x=159

e)2x+3x+9=8(6-x)
5x+9=48-8x
5x+8x=48-9
13x=39
x=39/13
x=3

f)3(5-x)-3(1-2x)=42
15-3x-3+6x=42
3x=42+3-15
3x=30
x=30/3
x=10