QuestionAugust 27, 2025

Use the elimination method to solve the system of equations Choose the correct ordered pair. -3y=x-5 x+5y=7 A. (-1,2) B. (2,1) C. (5,0) D. (-4,3)

Use the elimination method to solve the system of equations Choose the correct ordered pair. -3y=x-5 x+5y=7 A. (-1,2) B. (2,1) C. (5,0) D. (-4,3)
Use the elimination method to solve the system of equations Choose the
correct ordered pair.
-3y=x-5
x+5y=7
A. (-1,2)
B. (2,1)
C. (5,0)
D. (-4,3)

Solution
4.6(209 votes)

Answer

(2,1) Explanation 1. Express x from the first equation Rearrange -3y = x - 5 to get x = -3y + 5. 2. Substitute x in the second equation Substitute x = -3y + 5 into x + 5y = 7: (-3y + 5) + 5y = 7. 3. Simplify and solve for y Simplify to get 2y + 5 = 7. Subtract 5 from both sides: 2y = 2. Divide by 2: y = 1. 4. Solve for x using y = 1 Substitute y = 1 back into x = -3y + 5: x = -3(1) + 5 = 2.

Explanation

1. Express $x$ from the first equation<br /> Rearrange $-3y = x - 5$ to get $x = -3y + 5$.<br /><br />2. Substitute $x$ in the second equation<br /> Substitute $x = -3y + 5$ into $x + 5y = 7$: <br /> $(-3y + 5) + 5y = 7$.<br /><br />3. Simplify and solve for $y$<br /> Simplify to get $2y + 5 = 7$. <br /> Subtract 5 from both sides: $2y = 2$. <br /> Divide by 2: $y = 1$.<br /><br />4. Solve for $x$ using $y = 1$<br /> Substitute $y = 1$ back into $x = -3y + 5$: <br /> $x = -3(1) + 5 = 2$.
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