Question 125199
ok

x


7x+3y=21
7x(0)=21
7x/7 =21/7
x=3


y

7x+3y=21
(0)+3y=21
3y/3=21/3
y=7



In the questioin you dont have any sigh between 7x 3y=21

                                                no sign


so if you have a - here your answer is correct and if you have a + then mines are correct because i did it with +. 




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