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JulijaS [17]
2 years ago
10

Solve the system of equations by substitution. Show the steps that correspond with the substitution method.

Mathematics
1 answer:
Makovka662 [10]2 years ago
7 0

5x - 2(-2x - 5) = 19

5x + 4x +10 = 19

9x + 10 = 19

9x = 9

x = 1

y = -2(1) - 5

y = -2 - 5

y = -7

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The sum of three consecutive multiples of 3 is equal to 6 more than four times the smallest multiple. What is the largest multip
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Answer:  (a) 9

<u>Step-by-step explanation:</u>

1st multiple of 3: 1(3x)

2nd multiple of 3: 2(3x)

3rd multiple of 3: 3(3x)

Sum = 4(1st multiple of 3) + 6


1(3x) + 2(3x) + 3(3x) = 4(3x) + 6

 3x  +    6x  +    9x  =  12x  + 6

                        18x  = 12x + 6

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Largest (3rd) multiple is: 3(3x)

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5 0
3 years ago
Read 2 more answers
Please help and explain so I understand!!​
olga_2 [115]

Answer:

x=5

Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

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only 1 way

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Cuánto es 324 por 171
Nat2105 [25]

Answer:

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I hope this helped

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