Elementary Algebra

# Practice Test

Elementary AlgebraPractice Test

### Practice Test

631.

Determine whether each number is a solution to the equation $6x−3=x+206x−3=x+20$.

5
$235235$

In the following exercises, solve each equation.

632.

$n−23=14n−23=14$

633.

$92c=14492c=144$

634.

$4y−8=164y−8=16$

635.

$−8x−15+9x−1=−21−8x−15+9x−1=−21$

636.

$−15a=120−15a=120$

637.

$23x=623x=6$

638.

$x−3.8=8.2x−3.8=8.2$

639.

$10y=−5y−6010y=−5y−60$

640.

$8n−2=6n−128n−2=6n−12$

641.

$9m−2−4m−m=42−89m−2−4m−m=42−8$

642.

$−5(2x−1)=45−5(2x−1)=45$

643.

$−(d−9)=23−(d−9)=23$

644.

$14(12m−28)=6−2(3m−1)14(12m−28)=6−2(3m−1)$

645.

$2(6x−5)−8=−222(6x−5)−8=−22$

646.

$8(3a−5)−7(4a−3)=20−3a8(3a−5)−7(4a−3)=20−3a$

647.

$14p−13=1214p−13=12$

648.

$0.1d+0.25(d+8)=4.10.1d+0.25(d+8)=4.1$

649.

$14n−3(4n+5)=−9+2(n−8)14n−3(4n+5)=−9+2(n−8)$

650.

$9(3u−2)−4[6−8(u−1)]9(3u−2)−4[6−8(u−1)]$ $=3(u−2)=3(u−2)$

651.

Solve the formula $x−2y=5x−2y=5$ for y
when $x=−3x=−3$
in general

In the following exercises, graph on the number line and write in interval notation.

652.

$x≥−3.5x≥−3.5$

653.

$x<114x<114$

In the following exercises,, solve each inequality, graph the solution on the number line, and write the solution in interval notation.

654.

$8k≥5k−1208k≥5k−120$

655.

$3c−10(c−2)<5c+163c−10(c−2)<5c+16$

In the following exercises, translate to an equation or inequality and solve.

656.

4 less than twice x is 16.

657.

Fifteen more than n is at least 48.

658.

Samuel paid $25.82 for gas this week, which was$3.47 less than he paid last week. How much had he paid last week?

659.

Jenna bought a coat on sale for \$120, which was $2323$ of the original price. What was the original price of the coat?

660.

Sean took the bus from Seattle to Boise, a distance of 506 miles. If the trip took $723723$ hours, what was the speed of the bus?

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