3 years ago

Solve the system of equations using addition x+y=9 x-y=3

Mathematics

2 answers:

Semmy [17]3 years ago

8 0

(6,3) Is the answer________________

harkovskaia [24]3 years ago

4 0

I think this is correct. Hope this helps :)

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tatuchka [14]

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Step-by-step explanation:

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avanturin [10]

Answer:

-(2y+3)×(3y+5)

Step-by-step explanation:

- 3y(2y + 3) - 5(2y + 3)

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4 years ago

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azamat

Answer:

(40/2)-15

Step-by-step explanation:

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3 years ago

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netineya [11]

Answer:

$\bold{y+1=5(x+1)}$

Step-by-step explanation:

$m=\dfrac{y_2-y_1}{x_2-x_1}\\\\(-1,\,-1)\ \implies\ x_1=-1\,,\ y_1=-1\\(0,\,4)\ \implies\ x_2=0\,,\ y_2=4\\\\m=\dfrac{4-(-1)}{0-(-1)}=\dfrac{5}{1}=5$

$y-y_1=m(x-x_1)$ - point-slope form of Equation of the Line

$x_1=-1\,,\ y_1=-1\,,\ m=5\\\\equation:\\{}\qquad\qquad y-(-1)=5\big(x-(-1)\big)\\\\{}\qquad\qquad y+1=5\big(x+1\big)$

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