How to solve for a variable as part of a fraction

Practice Questions

PSAT Math › How to solve for a variable as part of a fraction

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1

Solve for .

$\frac{1}{3}(3x-6)+\frac{1}{2}(2x+4)=\frac{1}{5}(15x -5)$

2

The maximum number of sweaters that Lauren can sew every day is equal to s, and the amount, in cents, that she charges for each sweater is equal to c. Which of the following expressions is equivalent to the maximum amount of money that Lauren can make, in dollars, after three weeks?

3

If $\dpi{100} \small z>0$ , what is 40 percent of $\dpi{100} \small 30z$ ?

4

Solve for $x$ .

$(2x+3)-3(x+5)=-(3x-4)$

5

x = 1/2

What does 1/x + 1/(x + 4) equal?

6

Solve for .

$\frac{16}{x + 7} = \frac{2}{6}$

7

Solve for :

$\frac{24x-8}{3}=12$

8

If (t-5)/2t =13/19, what is the value of t?

9

If $\frac{6}{x}=\frac{9}{19}$ , then what is the value of ?

10

If , what is the value of $\frac{x^{2}+20}{x-4}$ ?

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