Question

MEDAL & FAN.
Solve for x: 2 over 5 (x - 2) = 4x.

2 over 9

9

negative 2 over 9

negative 9 over 2

Answer 1

I don't think if this is the answer..
\[\frac{ 2 }{ 5 }(x-2) = 4x\]
\[0.4(x-2) = 4x\]
\[0.4x - 0.8 = 4x\]
\[-0.8 = -0.4x + 4x\]
\[-0.8 = 3.6x\]
\[\frac{ -0.8 }{ 3.6 } = \frac{ 3.6x }{ 3.6 }\]
\[0.22 = x\]
\[2/9 = x\]
Now i use to divide first the 2/5 and get the answer on it,next i multiply 0.4..
See on the top my solution..