Question

1.
a) k = 7n ; n
b) a = k + 6 ; k
c) z = 7 - y ; y
d) d = a + bc ; c
e) x = 2k + 1 ; k
f) 2k = 7n + 5 ;n


2.
a) P = d/M RT ; M
b) f = 9/5c + 32 ; c
c) s= vt + at(kwadrat) / 2 ;a
d) F = G Mm/r(kwadrat) ; m

Answer 1

Ob= obustronnie
1.
a)k=7n;n
k=7n ob/7
n=k/7
b)a=k+6;k
a=k+6 ob -6
k=a-6
c)z=7-y;y
z=7-y ob +7
y=z+7
d) d=a+bc;c
d=a+bc ob -a
d-a=bc ob /b
(d-a)/b=c

e)x=2k+1;k
x=2k+1 ob -1
x-1=2k ob /2
(x-1)/2=k
f)2k=7n+5;n
2k=7n+5 ob -5
2k-5=7n ob /7
(2k-5)/7=n

Answer 2

A) k = 7n |:7
n = k/7
b) a = k + 6 |-6
k=a-6
c) z = 7 - y |+y
z+y = 7 |-z
y=7-z
d) d = a + bc |-a
d-a= bc |:b
c =(d-a) :b
e)x = 2k + 1 |-1
x-1=2k |:2
k=(x-1) :2
f) 2k = 7n + 5 |-5
2k - 5 =7n |:7
n=(2k -5):7

2.
a)P = d/M RT |*m
P*m = d RT |p
m= (d RT) :p
b)