Question

Solve 5kx+6=7kx for x

Answer 1

Resposta:

Explicação passo a passo:

$5kx+6=7kx$

Adding $- 5kx$ on both sides, we have

$5kx+6 - 5kx=7kx - 5kx\\\\0+6=7kx - 5kx\\\\6=7kx - 5kx\\\\6=2kx$

Dividing both sides by $2k$, we have $x$ :

$\dfrac{6}{2k}=\dfrac{2kx}{2k}\\\\\dfrac{6}{2k}=x\\\\\dfrac{2\cdot 3}{2k}=x\\\\\dfrac{3}{k}=x$