a)
k=7n |÷7
n=k/7
b)
a=k+6
k= a-6
c)
z=7-y
y= 7-z
d)
d=a+bc
d-a=bc |÷b
c=d-a/b
e)
x=2k+1
2k=x-1 |÷2
k=x-1/2
f)
2k=7n+5
2k-5=7n |÷7
n=2k-5/7
g)
t=1/a-5xa
t-1/a=-5xa |÷a
t/a-1=-5x |÷(-5)
x = - t/a-1/5
h)
w=1/2a+p/a |×2a
2aw=1+2p |÷w
2a=1+2p/w |÷2
a=1+2p/2w
