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Brrunno
[24]
3 years ago
13
Solve the following system of equations. 2x + y = 3 x = 2y - 1
Mathematics
Answer
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2
answers:
RoseWind
[281]
3 years ago
8
0
Using the substitution method.
2x + y = 3
x = 2y -1 Since x has been isolated already plug it into Equation 1
2(2y - 1) + y = 3 Solve for y.
4y - 2 + y = 3
<u> +2 +2 </u> Combine like terms and isolate y.
4y + y = 5
5y = 5 Isolate y by dividing both sides by 5
5y/5 = 5/5
y = 1
With y solved, solve either system for x.
x = 2(1) - 1
x = 2-1
x = 1
Solution is (1,1)
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Shalnov
[3]
3 years ago
7
0
2(2y-1)+y=3
y=1
x=2 x1 - 1
x=1
Send
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