kbsonnier16 kbsonnier16

09-08-2018
Mathematics

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Systems of equations: Elimination method
7y+15=3x
15=3x+2y

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mkryukova19 mkryukova19

09-08-2018

7y+15=3x

15=3x+2y

Bring all terms with x and y on one side.

-3x +7y = -15

3x+2y=15 Now we can add these equations.

9y = 0

y = 0

Lets find value of x.

7y+15=3x

7*0+15=3x

3x =15

x=5

Answer x=5, y=0.

(5,0)

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