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Mariulka [41]
2 years ago
11

Solve this system by Linear Combination (Elimination)

Mathematics
1 answer:
Aleksandr [31]2 years ago
8 0

They result in the same equation

rewrite it:

2y = 4x +18

3y = 6x + 27

divide so that you have only y

y = 2x + 9

y = 2x + 9

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So far, Carmella has collected 14 boxes of baseball cards. There are 315 cards in each box. Carmella estimates that she has abou
gladu [14]

Answer:

no

Step-by-step explanation:

315x4= 4410. Therefore, if an album holds 500 cards, she would need 9 albums.

3 0
2 years ago
7x + 2y = -1<br> 3x – 4y = 19
jeka94

Answer:  Y = - 4 & x = 1

Step-by-step explanation:

Systems of linear equations: We will solve this using substitution but you can use 2 more ways.

7x + 2y = -1

2x - 4y = 19

Leave X  alone first: -------------------

10x - 2y = 18

10x/10 = 18 + 2y/10

x = 9/5 + y/5

Solve for y:

7(9/5 + y/5) + 2y = -1

63/5 + 7y/5 + 2y - 1

63/5 + 7y/5 = 10y/5 = -1

63/5 + 17y/5 = -1 (-5/5)

17y/5 = -68/5 (cancel the 5)

y = -68/17

y = - 4 (Your Answer)

7x + 2(- 4) = -1

7x + (-8) = -1

7x = 7

x =   1

CHECK=

7(1) + 2(-4) = -1

7+ (-8) = -1.

-1=-1

7 0
3 years ago
Read 2 more answers
PLS HELP FOR BRAINLIEST
lisov135 [29]

Answer:

What is the question

Step-by-step explanation:

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2 years ago
Help me please it’s due today
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1. B. $20
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The Commutative Property states that the order of terms in an expression does not affect the outcome. Which of the following ope
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