Problem: what is the solution to 2x-y=4, 7x-3y=14
what are the solutions of 2x-y=4 , 7x-3y=14
2x - y = 4
7x - 3y = 14
3(2x - y) = 4 * 3
6x - 3y = 12
7x - 3y = 14
-(6x - 3y = 12)
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x = 2
x = 2
2x - y = 4
2(2) - y = 4
4 - y = 4
4 - y - 4 = 4 - 4
-y = 0
y = 0
Check:
7x - 3y = 14
7(2) - 3(0) = 14
14 - 0 = 14
14 = 14
Answer: x = 2, y = 0