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# Algebra - Practice Problems

Determine whether 28 is a solution of the Is 28 a solution?
equation x - 15 = 11. ! ----Yes
----No

Determine whether 3 is a solution of the equation Is 3 a solution
7x=7=30 ----Yes
----No
Determine whether 16 is a solution of the equation
5(x-2)=70 Is 16 a solution?
----- No
----- Yes

Solve for x using the addition principle. The solution is x= ----

x+ 8=-10

x-5= 17 The solution is -----

x+3/13=5/13

2.2=t-9.5 The solution is -----

6x=60 The solution is -----

-x=36 The solution is -----

-x/6=9 The solution is -----

- 4/7 x = 8/35 The solution is x= ---
(type an integer or a fraction)

x+ 7= 37 The solution is x= ----

4x+9=29 The solution is x= ----

5x-15=10 The solution is x= ---

-4x-23= -24 1/3 The solution is x= ----

8x+ 13x= 126 The solution is x= ---
(type an integer or decimal)

-5x - 9x= -112 The solution is x= ----

6.4x-3.7x = -54 The solution is x= ----

7y-9=24 -4y The solution is y= ---

2x- 3=21 + lOx The solution is x= ----

3y-5+y+25=5y+20-3y The solution is y= ----

5/2x+1/2x=3x+20/2+5/2x The solution is x= ----

3.4x-1.4=1.36-3.5x The solution is x= ----
(Simplify your answer. Type an integer or a decimal. Round to the nearest tenth if needed. )

4(2x-2)=24 The solution is x= ----
(Simplify your answer. Type N if there is no solution. Type R if the solution is all real numbers.)

6-4(3x-1)=-26 The solution is x= ----
(Simplify your answer. Type N if there is no solution. Type R if the solution is all real numbers.)

4(x+4)=6x-2r The solution is x= ----
(Simplify your answer. Type N if there is no solution. Type R if the solution is all real numbers.)

b=a+y, for a The solution is a= ----

Dy=Cx, for x The solution is x= ----

What percent of 220 is 44 The anwser is_____%

50% of what number is 35? The anwser is ____

What is 75% of 440? The anwser is _____

A basketball player completed 44. 1 % of his field goals in the most recent season. He made 288 field goals.
How many did he attempt? He attempted __ field goals.

(Simplify your answer. Type an integer or a decimal. Round to the nearest integer as
needed. )

To finance her community college education, Sarah takes out a loan for \$3200. After a year Sarah decides to pay off the interest, which is 8% of \$3200. How much will she pay?______

An employee's new salary is \$16.800 after getting a 5% raise. What was the salary before the increase in pay? Last year's salary was \$_____

A 50 word response on how do you know when an equation has infinitely many solutions? How do you know when an equation has no solution?

#### Solution Summary

Step-by-step solutions are provided.

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