Time remaining:
Solve the equation ,multiple, determine a variable

Algebra
Tutor: None Selected Time limit: 0 Hours

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Aug 19th, 2014

Problem 14

3(x-5) =-2(4x+6)

3x-15 =-8x-12

3x+8x =-12+15=3

11x= 3

x= 3/11

Problem 15

Let the number be  x

Negative one times the sum of twice thenumber and 3 = (-1)(2x+3)

Two times the difference of 4 times the number and 3 =2(4x-3)

(-1)(2x+3) = 2(-4x-3)

-2x-3 =-8x-6

-2x+8x =-6+3 =-3

6x = -3

x= -3/6 = -1/2

Option C

Problem 16

Jacob’s saving = $35

Jacob’s weekly saving = d

Jacob’s savings for 6 weeks = 6d

Total savings =35+6d

Cost of bicycle =$175

35+6d=175

Option  a)

Problem 17

Cost of Compact disc =$13.95

Shipping Cost = $1.95

Let x be the number of compact disc Maria purchases

Her total cost =1.95+13.95 x = 85.65

13.95x +1.95 =85.65

13.95x =85.65-1.95 = 83.70

x= 83.70/13.95 =6

Number of Compact discs Maria buys = 6

Aug 19th, 2014

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