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Karo-lina-s [1.5K]
3 years ago
14

Solve each equation.

Mathematics
1 answer:
Nostrana [21]3 years ago
3 0

Answer:

13x+9=30

13x=30+9

13x=39

divide both sides by 13

x=3

12x+1=-13

12x=-13-1

12x=-14

divide both sides by 12

x=7/6

x+2+4=11

x+6=11

x=11_6

x=5

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LenKa [72]

Answer:

h(-2)=-6

g(2)=-7

Step-by-step explanation:

Just plug 2 in for x and solve the equation.

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3 years ago
Bx-6y=18 and 2x-3y=9
Sloan [31]
X - 6y=18     
2x-3y=9    |*-2

   x -6y=18
-4x+6y=-18
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-3x=0, x=0

2x-3y=9
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3 years ago
What are some real life situations using system of equations?
OlgaM077 [116]
Bob's car rental company makes you pay 10 dollars per day you rent the car and a 30 dollar insurance fee

joe's car rental company makes you pay 30 dollars per day you rent the car and a 10 dollar insurance fee

how many days do you need to rent a car for the cost for renting both are the same

bob=10x+30
joe=30x+10
set each to each other
10x+30=30x+10
subtract 10x
30=20x+10
subtract 10
20=20x
divide both sides by 20
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you need to rent 1 day for them to be equal
3 0
3 years ago
Find the difference:<br> -3/5 - (-5/9)
Stella [2.4K]

Answer:

-2/45

Step-by-step explanation:

-3/5 - (-5/9)

Subtracting a negative is like adding

-3/5 + 5/9

Get a common denominator of 45

-3/5*9/9    + 5/9 *5/5

-27/45 + 25/45

-2/45

6 0
3 years ago
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Answer:

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Step-by-step explanation:

8 0
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