SOLUTION: solve the following systems fof equations by addition or subtraction. 3x+6y=30 x+5y=19

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Question 194880This question is from textbook teach yourself visually algebra
: solve the following systems fof equations by addition or subtraction.

3x+6y=30
x+5y=19 This question is from textbook teach yourself visually algebra

Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
3x+6y=30
x+5y=19


3x+6y=30
-3*(x+5y)=-3*19


3x+6y=30
-3x-15y=-57


-9y=-27

-------> y = 3

x+5y=19
x+5(3)=19

x+15=19

x=4


Ans: x=4, y=3 ----> (4,3)