Mathematics: -6y= -20 + 2x 2x – 4y=0 Solve by elimination

-6y= -20 + 2x 2x – 4y=0 Solve by elimination - id62022405488016, Jazminruiz0527

camrynhelm7193

21.01.2022

$x=5\\\\y=2$

Step-by-step explanation:

Given Equations:

-6y= -20 + 2x Equation:1

Solving Equation:1 Adding '' to both the sides:

2x+6y-20=0

Adding '20' both the sides:

2x+6y=20 Equation:2

$2x - 4y=0\\$ Equation:3

Subtracting Equation:3 From Equation:2

$2x+6y-(2x-4y)=20-0\\\\2x+6y-2x+4y=20\\\\10y=20\\\\y=\frac{20}{10}\\\\ y=2$

Putting the value of 'y' in equation:3

$2x - 4y=0\\$

$2x-4(2)=0\\\\2x-8=0$

Adding '8' to both the sides

$2x=8\\\\x=8/2\\\\x=5$

SO,

$x=5\\\\y=2$

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monica1217

18.02.2022

Step-by-step explanation:Addentitive property states that any number added with 0 is the original number. so, 15+0=15

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