Solving the equation for x when \( x - 4y = 14\) and \(\frac{y}{x}=2\)?

Explanation

from second equation, y = 2x and x− 4(2x)=14 gives x = −2

Leo wants to borrow \(\$500\)for one year, but he wants to pay no more than \(\$35\) in interest. What is the MAXIMUM interest rate per year that he can agree to pay?

What is the value of the expression \(3 + 4 × 6 – 2(5 \times 8)\)?

The value of X from the equation \(\frac{x}{4}+10 \%\) of \(X-30 \%\) of \(X+\frac{2}{5} X\) will be?

If \(f(x)=x^{4}\), for what value of a does f(a) = 1296?

What will be the value of x in the equation \(4 x^{2}-x=0\)?