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If 7x + 2y = 3 and x - 3y = 30, what is the solution
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If 7x + 2y = 3 and x - 3y = 30, what is the solution

User Ujjwal Khatri
by
6.9k points

1 Answer

1 vote
7x+2y=3 | ×3
x-3y=30 | ×2

21x + 6y = 9
2x - 6y = 60 +
--------------------------
23x / = 69
x = 69:23
x = 3

7x + 2y = 3
21 + 2y = 3
2y = -18
y = -9

User Svetoslav Marinov
by
6.6k points
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