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Kamila [148]
2 years ago
5

9.

Mathematics
1 answer:
Ludmilka [50]2 years ago
4 0
Is it a abc answer ? To pick I don’t understand or is it to solve
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NEED HELP ASAP <br> WILL GIVE BRAIN
34kurt
Im really dumb i srry!
7 0
2 years ago
Use substitution to solve the system.<br> -5x + 3y = 19<br> x = 3y - 11
telo118 [61]

Answer:

x = -2

y = 3

Step-by-step explanation:

-5x + 3y = 19

x = 3y - 11

-5x + 3y = 19

-5(3y - 11) + 3y = 19

-15y + 55 + 3y = 19

-15y + 3y + 55 = 19

-12y + 55 = 19

-12y = 19 - 55

-12y = -36

y = -36/-12

<u>y = 3</u>

x = 3y - 11

x = 3(3) - 11

x = 9 - 11

<u>x = -2</u>

5 0
2 years ago
The sum of a number and twenty-six, divided by twelve is equal to seven! <br><br> Please!!
Travka [436]

Answer:

58

Step-by-step explanation:

1. let x be the unknown number

2. make an expression

x + 26/12 = 7/1

3. cross multiply

x +26 × 1 = x + 26

12 × 7  = 84

 x + 26 = 84

4. move variables on one side and numbers on other side of the equal sign

x + 26 = 84

   - 26    -26

x = 58

4 0
2 years ago
Jalil and Victoria are each asked to solve the equation ax – c = bx + d for x. Jalil says it is not possible to isolate x becaus
Llana [10]
Ask google because I’m so dumb I can’t even read this ! Have a great day I hope you find your answer
8 0
2 years ago
What is the surface area of a cube with a side length of 8 mm
Tcecarenko [31]
S=6a²
a=8mm
S = 6 * 8² = 6 * 64 = 384 mm²
7 0
3 years ago
Read 2 more answers
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