Asked by John
How do you solv 3x-2y=10
7x+2y=30
7x+2y=30
Answers
Answered by
Anonymous
add them
3 x - 2 y = 10
7 x +2 y = 30
------------------- add
10 x + 0 = 40
so
x= 4
go back to either equation to find y using x = 4
3 x - 2 y = 10
7 x +2 y = 30
------------------- add
10 x + 0 = 40
so
x= 4
go back to either equation to find y using x = 4
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