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X+3y=-14 2x-4y=30

x + 3y = - 14 | 2x - 4y = 30


User Mdja
by
7.6k points

1 Answer

6 votes

Answer:

(-5.8, -2.73)

Explanation:

To solve the system of equations, use elimination. Multiply one equation by an integer to get matching coefficients. Then add or subtract the equations to eliminate a variable.

2(x + 3y = -14)

2x + 6y = -28

Now that the x variables have the same coefficients, subtract the equations:

2x + 6y = -28

2x - 4y = 30

____________

0x + 10x = -58

x = -5.8

Substitute x = -5.8 into one equation and solve for y.

-5.8 + 3y = -14

3y = -8.2

y = -2.73

User Brankica
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7.5k points