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Lana71 [14]
3 years ago
5

Y=2x + 4 y= -10/3 x + 76/3 what is the sum of the x- and y-values in the solution to the system of equations?

Mathematics
1 answer:
Andreyy893 years ago
4 0

Given:

The system of equations:

y=2x+4

y=-\dfrac{10}{3}x+\dfrac{76}{3}

To find:

The sum of the x- and y-values in the solution to the system of equations.

Solution:

We have,

y=2x+4                ...(i)

y=-\dfrac{10}{3}x+\dfrac{76}{3}                  ...(ii)

From (i) and (ii), we get

2x+4=-\dfrac{10}{3}x+\dfrac{76}{3}

2x+\dfrac{10}{3}x=\dfrac{76}{3}-4

\dfrac{6x+10x}{3}=\dfrac{76-12}{3}

Multiply both sides by 3.

16x=64

Divide both sides by 16.

x=\dfrac{64}{16}

x=4

Putting x=4 in (i), we get

y=2(4)+4

y=8+4

y=12

The solution of system of equations is (4,12).

x+y=4+12

x+y=16

Therefore, the sum of the x- and y-values in the solution to the system of equations is 16.

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