Wyznacz x ze wzoru: 3x+b a ______ = ____ a b 2x-a x _______ = ______ b a Pomóżcie ;)
1]
(3x+b)/a=a/b
a²=b(3x+b)
a²=3xb+b²
3xb=a²-b² /:3b
x=(a²-b²)/3b
2]
(2x-a)/b=x/a
bx=a(2x-a)
bx=2ax-a²
a²=2ax-bx
x(2a-b)=a²
x=a²/(2a-b)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
1]
(3x+b)/a=a/b
a²=b(3x+b)
a²=3xb+b²
3xb=a²-b² /:3b
x=(a²-b²)/3b
2]
(2x-a)/b=x/a
bx=a(2x-a)
bx=2ax-a²
a²=2ax-bx
x(2a-b)=a²
x=a²/(2a-b)