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katrin [286]
3 years ago
13

Multiply each equation by a number that produces opposite coefficients for x or y

Mathematics
2 answers:
Eduardwww [97]3 years ago
8 0

Step-by-step explanation:

\left\{\begin{array}{ccc}1x-1y=100&\text{multiply both sides by (-3)}\\\dfrac{3}{8}x+\dfrac{7}{8}y=2000&\text{multiply both sides by 8}\end{array}\right\\\\\left\{\begin{array}{ccc}-3x+3y=-300\\3x+7y=1600\end{array}\right\\\\\text{or}\\\\\left\{\begin{array}{ccc}1x-1y=100&\text{multiply both sides by 7}\\\dfrac{3}{8}x+\dfrac{7}{8}y=2000&\text{multiply both sides by 8}\end{array}\right\\\\\left\{\begin{array}{ccc}7x-7y=700\\3x+7y=1600\end{array}\right

Anna11 [10]3 years ago
3 0

Answer:

1st option is: -3

2nd option is: 8

Step-by-step explanation: I just did the assessment on edge

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Step-by-step explanation:

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