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3 years ago

-3x + 2y = 56 -5x - 2y= 24

Mathematics

2 answers:

krek1111 [17]3 years ago

7 0

Answer:

x = -10 and y = 33

Step-by-step explanation:

just plug them in for x and y, you'll see that they're correct

scoundrel [369]3 years ago

7 0

Answer:

(- 10, 13 )

Step-by-step explanation:

Given the 2 equations

- 3x + 2y = 56 → (1)

- 5x - 2y = 24 → (2)

Adding the 2 equations term by term eliminates the y- term, that is

- 8x = 80 ( divide both sides by - 8 )

x = - 10

Substitute x = - 10 into either of the 2 equations and solve for y

Substituting into (1)

- 3(- 10) + 2y = 56

30 + 2y = 56 ( subtract 30 from both sides )

2y = 26 ( divide both sides by 2 )

y = 13

Solution is (- 10, 13 )

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