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Marizza181 [45]
3 years ago
15

Solve equation 3x-5y=7 5x-2y=-1 by elimination

Mathematics
2 answers:
kakasveta [241]3 years ago
7 0

Answer:

x = -1, y = -2.

Step-by-step explanation:

Using the elimination method,

multiply the first eqn by 2 and the 2nd eqn by 5.

6x - 10y = 14

25x - 10y = -5

Subtract one of the new equations from the other

-19x = 19

x = -1

Sub x=-1 into the 2nd eqn

-5 - 2y = -1

y = -2

Hence x = -1, y = -2.

jarptica [38.1K]3 years ago
5 0

Answer: x= -1, y= -2

Step-by-step explanation:

Multiply both sides of the equation by -2.

-6x + 10y= -14

5x - 2y= -1

Sum the equations vertically to eliminate at least one variable.

19x= -19

Divide both sides of the equation by 19.

x=-1

Substitute the given value of x into the equation 5x (-1) - 2y= -1.

Solve the equation for y.

y=-2

The possible solution of the system is the ordered pair (x,y)

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Step-by-step explanation:

Answer:


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