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3 years ago

6

Solve the system of equations by graphing. x+y=3 y=2x−15

2 answers:

nexus9112 [7]3 years ago

6 0

Answer:

Step-by-step explanation:

x+y=3

graphing the equation by X intercept (3,0) and Y intercept (0,3)

y=2x-15

graphing the equation with slope = positive 2

and Y intercept = -15

and graphs of these lines are given as follows

solution is given by (6,-3)

Stella [2.4K]3 years ago

4 0

Hey!

Hope this helps...

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

x + y = 3

x = 3 - y

y = 2x - 15

y = 2(3 - y) - 15

y = 6 - 2y - 15

y = -2y - 9

3y = -9

y = -3

y = 2x - 15

-3 = 2x - 15

-2x = -12

x = 6

So...

The answer is: (6, -3)

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