SOLUTION: respected teacher, i have a big problem. we have not learned this yet in the class. the question is: find four values of(x,y)which satisfy each of the following equations. 1)2x

Question 81885: respected teacher,
i have a big problem.
we have not learned this yet in the class.
the question is: find four values of(x,y)which satisfy each of the following equations.
1)2x +y = 7
2)x - y = 3
3)x = -y
4)x = y
5)x + y = 11
6)y - 5 = x
i didnt understand whether we have to take every single equation in consideration or only one at a time.
i tried it by taking one in the consideration.
and for the first one got the answer:
2x +y = 7
y = 7-2x
so if we substitute x=3
then, y = 7-2*3
y = 7-6
y = 1
thus if x = 3,then y = 1
and likewise we can get other co-ordinates by substituting x
ps:and if this way is correct for solving this question,dont solve the other sums.just tell me it is correct
thanking you in anticipation,
your student.
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
your technique is correct ... also your assumption of one equation at a time
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