it has to do with "solving systems of equations:elimination method
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1 Answer

1) -2x + y = 0
2) -3x - 2y = -35

We can eliminate y; multiply equation 1 by 2.

2 * (-2x + y) = 0 * 2
3) -4x + 2y = 0

Add equation 2 to equation 3.

   -4x + 2y =    0
+(-3x - 2y = -35)
----------------------
   -7x        = -35
-7x = -35
-7x/-7 = -35/-7
x = 5

With that, we can use equation 1 to solve for y.

-2x + y = 0
-2(5) + y = 0
-10 + y = 0
-10 + y + 10 = 0 + 10
y = 10

Use equation 2 to check the answers.

-3x - 2y = -35
-3(5) - 2(10) = -35
-15 - 20 = -35
-35 = -35

Answer: x = 5, y = 10


Problem statement: what is the answer to ... -2x+y=0 -3x-2y=-35
it has to do with "solving systems of equations:elimination method

 

by Level 11 User (78.4k points)

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