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# Algebra Help

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Please solve the 10 question and check the 5 problems that are asked. I am struggling with algebra and need all the help I can get, I'm not certain of the answers that I have so your help would be greatly appreciated.

https://brainmass.com/math/basic-algebra/solving-various-algebra-help-149786

## SOLUTION This solution is FREE courtesy of BrainMass!

Week 4

Problem #1
Is the number shown in parentheses a solution for the given equation?
x + 8= -12 (-6)

No

Problem #2
Solve for x and check your result.
10x = -100

x = -100/10
x = -10

10 * (-10) = -100

Problem #3
Solve for x and check your result
= 2

x = 3 * 2
x = 6

6/3 = 2

Problem #4
Solve for x and check your result
8- 5x = -7

-5x = -8 - 7
-5x = -15
x = -15 / (-5)
x = 3

8 - 5 * 3 = 8 - 15 = -7

Problem #5
Solve the literal equation for the indicated variable
K = (for m) Energy

mv2 = K
m = K/ v2

Problem #6
Solve the equation for x, and check your result:
2(x + 3) = -6

x + 3 = -6/2
x + 3 = -3
x = -3 -3
x = -6

2 * (-6 + 3) = 2 * (-3) = -6

Problem #7
Solve the equation for x, and check your result
7(3x + 11) = 9(3 - 6x)

21x + 77 = 27 - 54x
21x +54x = 27 - 77
75x = -50
3x = -2
x = -2/3

7 ( 3 * (-2/3) + 11) = 9 (3 - 6 * (-2/3))
7 * 9 = 9 * 7

Problem #8
Identify the indicated quantity in the statement
The base in the statement "40% of 600 is 240."

600 * 40/100 = 600 * 4/10 = 60 * 4 = 240

Problem #9
Carlotta received a monthly raise of \$162.50. If this represented
a 6.5% increase, what was her monthly salary before the raise?

x * 6.5/100 = 162.5
x = 162.5 / (6.5/100)
= (162.5 * 100)/6.5
= \$2,500

Problem #10
Graph the solution of the follow inequality
x < -2