which equation can replace 3x 5y = 59 in the original system and still produce the same solution? 2x – y = –4 10x – 5y = –20 7x

Question

liberstina [14]

3 years ago

8

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

Mathematics

2 answers:

natka813 [3] · Answer 1 · 2021-12-09T04:48:37+03:00

From my research, the original system of equations contain the following equations:

<span>2x − y = −4
3x + 5y = 59

where obtained solution is x = 3

Among the choices, it is easier to substitute </span><span>3x + 5y = 59 with one of the choices to see if they yield the same solution set. From trial-and-error, the equation that can replace the original equation is " 13x = 39 ". Among the choices, it is the 4th choice.</span>

tresset_1 [31] · Answer 2 · 2021-12-09T06:00:39+03:00

tresset_1 [31]3 years ago

4 0

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They right it's d