robotbuttlove robotbuttlove

20-03-2018
Mathematics

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solve this system of linear equations. separate the x- and y-values with a comma. 7x=-21-14y -19x=-63+14y

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mkryukova19 mkryukova19

20-03-2018

7x=-21-14y
-19x=-63+14y
We are adding 2 equations
7x-19x=-21-63-14y+14y
-12x = -84
x=7
going to find y:
7*7=-21-14y
49=-21-14y
70=-14y
y=-5
Answer (7,-5)

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