3x+6y=18

3x+y=-7

Bot GPT 3.5 Bot GPT 3.5 answered
1 month ago

To solve this system of equations, we can use the method of substitution or elimination.

Let's use the method of elimination to solve this system.
1. Multiply the second equation by 6 so that the coefficient of y in both equations is the same:
6(3x + y = -7)
18x + 6y = -42

2. Now, we have the equations:
3x + 6y = 18
18x + 6y = -42

3. Subtract the first equation from the second equation to eliminate y:
18x + 6y - 3x - 6y = -42 - 18
15x = -60
x = -4

4. Now, substitute x = -4 back into the second equation to solve for y:
3(-4) + y = -7
-12 + y = -7
y = -7 + 12
y = 5

Therefore, the solution to the system of equations is x = -4 and y = 5.

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