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What is the solution for the system of equations
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Jul 13, 2019
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What is the solution for the system of equations
Mathematics
middle-school
Sayeem
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I'd immediately add the two given equations together. This produces 4x = 8, so that x = 2. Subbing 2 for x in the first equation results in 2+2y=3, so 2y = 1, and y = 1/2.
Thus, the solution is (2, 1/2).
Kolonel
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Jul 16, 2019
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First, it depends how you want to solve the system. The easiest way is to solve by elimination. Eliminate the 2 s. Therefore, 4x = 8. Divide by 4 to find x. After dividing by 4, x=2. To find the y plug in 2 for x in the original equation. Try for the first one. 2 +2y =3. Subtract 2 from both sides of the equation. Then you get 2y =1. Divide by 2 in both sides and you get y = 1/2.
Dwarkesh
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Jul 19, 2019
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