He system of equations can be solved using linear combination to eliminate one of the variables.
2x _ y = _4 _ 10x _ 5y = _20
3x + 5y = 59 _3x + 5y = 59
13x = 39
Which equation can replace 3x + 5y = 59 in the original system and still produce the same solution?
2x _ y = _4
10x _ 5y = _20
7x = 39
13x = 39
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