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bearhunter [10]
4 years ago
13

2. Solve the following system of equations using substitution.

Mathematics
1 answer:
SOVA2 [1]4 years ago
4 0
First, make sure you convert both equations into standard form. Your two equations would be 2x+2y=38 and -x+y=3. Then multiply the bottom by 2. So your new equations would be 2x+2y=38 and -2x+2y=6. The x would cancel out and you would continue solving for y. y would equal 11 and then you would plug it back into an original equation. When you plug and solve for x, you would get x=8. So your answer would be (8,11)
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How do i solve this?
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Answer:

F. 3 5/6

Step-by-step explanation:

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Add 1/2 to both sides. To do this make the 4/5 have a common denominator of 10 by multiplying it by 2/2. Make 1/2 have a common den. of 10 by multiplying it by 5/5.

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Now you can add.

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