Question

Resolva as equações!!!!

a)x+6=11
b)y+7=6
c)-2r=8
d)x-5=7
e)n/3=5
f)x2=49
g)x3=1000
h)2t+3=15
i)3y-1=29
j)2x=1
k) (x+1)+4=9
l)7x=0

POR FAVOR!!!!!

Answer 1

a- x+6=11 ->  x=11-6 -> x=5
b- y+7=6 -> y=6-7 -> y=-1
c- -2r=8 -> -2r=8 .(-1) -> 2r=-8 -> r=-8/2 -> r=-4
d- x-5=7 -> x=7+5 -> x=12
e- n/3=5 -> n=5.3 -> n=15
f- x2=49 -> x=49/2 -> x=24,5
g- x3=1000 -> x=1000/3 -> x=333,33...
h- 2t+3=15 -> 2t=15-3 -> 2t=12 -> t=12/2 -> t=6
i- 3y-1=29 -> 3y=29+1 -> 3y=30 -> y=30/3 -> y=10
j- 2x=1 -> x=1/2 -> x=0,5
k- (x+1)+4=9 -> x+1=9-4 -> x+1=5 -> x=5-1 -> x=4
l- 7x=0 -> x=0/7 -> x=0

Answer 2

a)x+6 =11  b)y+7 =6  c)-2r =8 d)x-5 =7  e)n/3 =5     f)x² =49   g)x³ =1000
x =5            y = -1      r = -4     x =2       n/3 =5/1     x =7        x=10
                                                            n =15
h)2t+3 =15  i)3y-1 =29   j)2x =1    k)(x+1)+4=9  l)7x =0
2t =15-3      3y=29-1      x = 0,5      x+5=9         x=0
2t =12         3y =28                       x=4
t=6              y=28/3