Question

Por favor me ajudem tenho que entregar esse trabalho amanhã
Determine x:
a)6x=2x+16
b)2x-5=x+1
c)2x+3=x+4
d)5x+7=4x+10
e)4x-10=2x+2
f)4x-7=8x-2
g)2x+1=4x-7
h)9x+9+3x=15
i)16x-1=12x+3
j)3x-2=4x+9
k)5x-3+x=2x+9
l)17x-7x=x+18
m)x+x-4=17-2x+1
n)x+2x+3-5x=4x-9
o)5x+6x-16=3x+2x-4
p)5x+4=3x-2x+4

Answer 1

faz na calculadora é mais facil 

Answer 2

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) 2x+3=x+4
2x-x=4-3
x=1
d) 5x+7=4x+10
5x-4x=10-7
x=3
e) 4x-10=2x+2
4x-2x=2+10
2x=12
x=12/2
x=6
f) 4x-7=8x-2
4x-8x=-2+7
-4x=5.(-1)
4x=-5
x=-5/4
x=-1,25
g) 2x+1=4x-7
2x-4x=-7-1
-2x=-8.(-1)
2x=8
x=8/2
x=4
h) 9x+9+3x=15
9x+3x=15-9
12x=6
x=6/12 (:6)
x=1/2
i) 16x-1=12x+3
16x-12x=3+1
4x=4
x=4/4
x=1
j) 3x-2=4x+9
3x-4x=9+2
-x=11.(-1)
x=-11
k) 5x-3+x=2x+9
5x+x-2x=9+3
6x-2x=12
4x=12
x=12/4
x=3
l) 17x-7x=x+18
17x-7x-x=18
17x-8x=18
9x=18
x=18/9
x=2
m) x+x-4=17-2x+1
x+x+2x=17+1+4
4x=22
x=22/4 (:2)
x= 11/2
n) x+2x+3-5x=4x-9
x+2x-5x-4x=-9-3
3x-9x=-12
-6x=-12.(-1)
6x=12
x=12/6
x=2
o) 5x+6x-16=3x+2x-4
5x+6x-3x-2x=-4+16
11x-5x=12
6x=12
x=12/6
x=2
p) 5x+4=3x-2x+4
5x-3x+2x=4-4
5x-x=0
4x=0
x=0/4
x=0