Elimination Method Choose all that give a correct first step to solve the system of equations by the elimination method.
Equation A: 3x - 4y = 52
Equation B: 5x + y = 30
Multiply Equation B by -4
Equation A: -2x + 3y = -1
Equation B: x - 5y = 25
Multiply Equation B by 2
Equation A: 2x + y = 2
Equation B: -3x + 3y = 10
Multiply Equation A by 5
Equation A: 4x - y = 3
Equation B: 6x + 3y = 9
Multiply Equation A by-3
(MGSE9-12 A REL5) S

step-by-step explanation:

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step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

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3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !

the answer for this is 0.25 km. : )