HayleiMae
23.10.2020 •
Mathematics
Solve the following system of equations using substitution, show all steps. 2x-4y=20 / x= 4
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Ответ:
(4, -3)
Step-by-step explanation:
Since we know that X = 4, when can set X = 4 in the other equation in order to solve for Y
2x - 4y = 20
2(4) - 4y = 20
8 - 4y = 20
-8 -8
-4y = 12
-4y/-4 = 12/-4
y = -3
Since we already know X = 4, the intersection point or solution to the System is (4, -3)
Hope this helps!
Ответ:
X=1/2 and Y= -1/2