If the system is to be solved using the addition method, by what constant should one of the equations be multi

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If the system is to be solved using the addition method, by what constant should one of the equations be multi

{-4x – 8y = 5
{-28x – 6y = -3

Is it...
-4,
4,
1/7,
or 7?

2007-04-16 16:34:27 · 1 answers · asked by fun_intelligentcrafty 1 in Science & Mathematics ➔ Mathematics

1 answers

Strictly, none of these. The easiest way to solve by addition is to multiply the first equation by NEGATIVE SEVEN. Then addition will drop out the x terms.

2007-04-16 16:40:11 · answer #1 · answered by cattbarf 7 · 0⤊ 0⤋