Question

Jak przekształcić ten wzór,żeby obliczyć x ?

(x-a)/b= (3m-x)/k

Answer 1

(x-a)/b= (3m-x)/k /*kb
kx-ka=3mb-bx
kx+bx=3mb+ka
x(k+b)=3mb+ka
x=(3mb+ka)/k+b

Answer 2

(x-a)/b= (3m-x)/k | * b
x-a = 3m-x/k/b
x=3m-x/k/b + a
2x = 3m/k/b + a |:2
x = (3m/k/b + a) : 2

Answer 3

(x-a)/b=(3m-x)/k |*kb
kx-ka=3mb-bx |+bx; +ka
kx+bx=3mb+ka
x(k+b)=3mb+ka |-(k+b)
x=(3mb+ka)/k+b

* - to razy :D