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Using elimination to solve the system 2x + y = 8 and x + y = 4, which of the following could be the first step?
A. 2x + y = 8> 2x + y = 8
(x + y = 4)(1)> x  y = 4
B. 2x + (4  x) = 8
C. 2x + y = x + y
D. 3x + 2y = 12
E. x = 4
 2 years ago
 2 years ago
Using elimination to solve the system 2x + y = 8 and x + y = 4, which of the following could be the first step? A. 2x + y = 8> 2x + y = 8 (x + y = 4)(1)> x  y = 4 B. 2x + (4  x) = 8 C. 2x + y = x + y D. 3x + 2y = 12 E. x = 4
 2 years ago
 2 years ago

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vishal_kothariBest ResponseYou've already chosen the best response.1
x—2 equations combined: 2x + y  x  y = 8  4 x = 4 y—1st equation, substitute x with 4: 2(4) + y = 8 8 + y = 8 y = 0 Answer: x = 4, y = 0 Proof—2nd equation: 4 + 0 = 4 4 = 4....
 2 years ago

AlexisDelgadoBest ResponseYou've already chosen the best response.1
So the answer is ?
 2 years ago

vishal_kothariBest ResponseYou've already chosen the best response.1
Answer: x = 4, y = 0
 2 years ago

AlexisDelgadoBest ResponseYou've already chosen the best response.1
but its asking for the first step
 2 years ago

vishal_kothariBest ResponseYou've already chosen the best response.1
i also that it is the first step....
 2 years ago
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