Question

if 0.3x +0.5 = 0.4x-0.2 then x is _____ *​

Answer 1

Answer:

$0.3x + 0.5 = 0.4x - 0.2 \\ 0.5 + 0.2 = 0.4x - 0.3x \\ 0.7 = 0.1x \\ \frac{0.7}{0.1} = x \\ 7 = x$

Answer 2

Answer:

7

Step-by-step explanation:

0.3x +0.5 = 0.4x-0.2

0.3x -0.4x = 0.5-0.2

-x = -0.7

$\boxed{x = 0.7}$