10 Мая 2019 в 19:49
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Ответы
1

To solve this system of equations by elimination, we can follow these steps:

Step 1: Multiply the first equation by 5 and the second equation by 8 to make the coefficients of x the same:

58x+2ay8x + 2ay8x+2ay = 5111 85x+4ay5x + 4ay5x+4ay = 8222

This gives us:

40x + 10ay = 5
40x + 32ay = 16

Step 2: Subtract the first equation from the second equation to eliminate x:

40x+32ay40x + 32ay40x+32ay - 40x+10ay40x + 10ay40x+10ay = 16 - 5
32ay - 10ay = 11
22ay = 11
ay = 11/22
ay = 1/2

Step 3: Substitute the value of ay back into one of the original equations to solve for x. Let's use the first equation:

8x + 21/21/21/2 = 1
8x + 1 = 1
8x = 0
x = 0

Therefore, the solution to the system of equations is x = 0 and ay = 1/2.

28 Мая 2024 в 16:33
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