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22.06.2019 •
Mathematics
X-y=4 x+y=8 the x-coordnate of the solution to the system shows
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Ответ:
x = 6
Step-by-step explanation:
Given the 2 equations
x - y = 4 → (1)
x + y = 8 → (2)
Adding the 2 equations term by term eliminates the y- term
(x + x) + (- y + y) = (4 + 8), that is
2x = 12 ( divide both sides by 2 )
x = 6
Ответ:
no se boy a septimodkxkdkdkdkdkdoi