Answer:
Proportion states that the two fractions or ratios are equal
Given the equation:
By cross multiply we get;
Using distributive property;
Subtract 0.4 from both sides we get;
Subtract 1.5x from both sides we get;
Divide both sides by 0.1 we get;
Simplify:
x = 56
Therefore, the value of x that satisfy the equation is, 56