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$$ 2(3x+5)-5(4x-3) $$
Which of the following is equivalent to the expression above?
If x > 0 and \(x^2-\;y^2=\;z^2\) , what is the value of x in terms of y and z?
Which of the following is equivalent to \(8(y+2)-9\)?
$$p=12+\frac{18}m$$
The given equation relates the numbers p and m, where m is not equal to \(0\) and \(p>12\). Which equation correctly expresses m in terms of p ?
If \( 3x-\frac74=7 \), what is the value of x?
If \(3(4x-\frac32x+7)=-x-2\), what is the value of x?
What is the value of x if \(\frac5x+\frac23=\frac{20}x\)?
The expression \(\frac{35}{7x+21}\) is equivalent to \(\frac5{x+b}\) where b is a constant and \(x>0\). What is the value of b?
If \( 8z+14=102 \), what is the value of \(8z-14\)?
The function f is defined by \(f(x)=\frac{x+23}7\), and \(f(a)=11\), where a is a constant. What is the value of a?
\(ab-bcd+cd=abd\)
In the equation above, a, c, and d are each greater than 1. Which of the following is equivalent to b?
m = \(\frac{\left(\frac r{1200}\right)\left(1+\frac r{1200}\right)^N}{\left(1+\frac r{1200}\right)^N-1}\)P
The formula above gives the monthly payment m needed to pay off a loan of P dollars at r percent annual interest over N months. Which of the following gives P in terms of m, r, and N?
Which expression is equivalent to \((2x^2-3x+7)-3(4x^3-x^2+3x)\)?
The function f is defined by \(f(x)=\frac{x+20}4\), and \(f(d)=8\), where d is a constant. What is the value of d?
If \(4a^2=x\), what is a in terms of x?
$$\frac7{8b}=\frac{13x}z$$
The following expression relates the positive numbers \(b\), \(x\), and \(z\). Which equation correctly expresses \(x\) in terms of \(b\) and \(z\)?