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3 years ago

9x + 7y = 10 7x + 7y = 14

Mathematics

2 answers:

exis [7]3 years ago

7 0

Y=4/7
x=4/9
this is the answer

Veronika [31]3 years ago

3 0

Multiply the second row by -1 to cancel out the 7x.
9x+7y=10
-7x-7y=-14
2x=-4
x=-2

9(-2)+7y=10
-18+7y=10
7y=28
y=4

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4 years ago

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4 years ago

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swat32

Answer:

Step-by-step explanation:

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3 years ago

Question 1 of 10

statuscvo [17]

Answer:

slope is -1

Step-by-step explanation:

Slope of the line is changes in y over changes in x. It can also be referred as rise over run.

We can express mathematically as:

$\displaystyle{m=\dfrac{y_2-y_1}{x_2-x_1}}$

where m is slope.

Let (-2,5) be $\displaystyle{(x_2,y_2)}$ and (6,-3) be $\displaystyle{(x_1,y_1)}$ . Hence, apply the slope formula:

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2 years ago

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inysia [295]

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Step-by-step explanation:

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3 years ago