I think it is .05 but I am not 100% sure
By using the first number mulitiply
1. Is 124 days
2. ia 200,000,000
Ur welcome
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Divide sides by 4

Simplification

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So first, we want to substitute in 15 to all the x variables.
So,
3x - 8y = 5
Becomes
3 * 15 - 8y = 5
Or,
45 - 8y = 5
So here, you can subtract 45 from both sides to move all like terms to one side.
-8y = 5 - 45
And then simplify:
-8y = -40
Then divide both sides by -8
y = 5