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themachine14
11.02.2020 •
Mathematics
What would be my steps to solving this problem: x-2y=10
x+3y=5
Solved
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Ответ:
(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 )
Ответ:
All high school seniors at Eric’s school
Step-by-step explanation:
Just answered it