sadiaarome
sadiaarome sadiaarome
  • 11-02-2020
  • Mathematics
contestada

What would be my steps to solving this problem: x-2y=10
x+3y=5

Respuesta :

jimrgrant1 jimrgrant1
  • 11-02-2020

Answer:

(8, - 1 )

Step-by-step explanation:

One way is as follows

Given the 2 equations

x - 2y = 10 → (1)

x + 3y = 5 → (2)

Subtracting (2) from (1) term by term will eliminate the x- term

(x - x) + (- 2y - 3y) = (10 - 5), that is

- 5y = 5 ( divide both sides by - 5 )

y = - 1

Substitute y = - 1 into either of the 2 equations and solve for x

Substituting y = - 1 into (2)

x + 3(- 1) = 5, that is

x - 3 = 5 ( add 3 to both sides )

x = 8

Solution is (8, - 1 )

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