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lora16 [44]
3 years ago
5

One number is -3 times the first number. The sum of the numbers is -4. What is the second number?

Mathematics
1 answer:
kobusy [5.1K]3 years ago
6 0
Lets say that the first number is x and the second number is y.
from the question we know that:
y=-3x and x+y=-4
from there, you need to replace the y in the second equation with -3x since we know that is what y equals so we can have an equation with only one variable.
x+-3x+-4
Then you solve for x.
-2x=-4
x=2
then you find y with the fact that y=-3x
y=-6
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