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4 years ago

Solve the system of equations. −5y−10x=45 −3y+10x=−5

Mathematics

2 answers:

Fynjy0 [20]4 years ago

4 0

(-2,-5)
The first goal with equations like these is to get one of the variables to go away. You can do that by adding/subtracting one equation from the other. Then you solve for the one variable. Then you plug that answer into one of the original equations and solve.

postnew [5]4 years ago

3 0

Answer:

X=-2

Y=-5

Step-by-step explanation:

-5y-10x=45 Adding the equations

-3y+10x=-5

= -8y=40

-8y=40

-8y/-8=40/-8

Y=-5

-5y-10x=45

-5(-5)-10x=45......y is equal to-5

25-10×=45

-10x=45-25

-10x=20

-10x/-10=20/-10

X=-2

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Solve the system of equations. ​ −5y−10x=45 −3y+10x=−5 ​

Solve the system of equations. −5y−10x=45 −3y+10x=−5