bryneosburn
16.01.2020 •
Mathematics
Four times one number minus three times another number is 12. two times the first number added to three times to the second number is 6. find the numbers. write equations and solve the system using elimination
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Ответ:
By using the elimination method, the first number is 3 and the second number is 0.
Let the first number be a.Let the second number be b.Translating the word problem into an algebraic expression, we have;
Four times one number minus three times another number is 12:
...equation 1.
Two times the first number added to three times to the second number is 6:
...equation 2.
Applying the elimination method, we have:
a = 3
For the value of the second number:
Read more on elimination method here: link
Ответ:
Step-by-step explanation:
x = first number, y = second number
4x - 3y = 12
2x + 3y = 6
add
6x = 18
x = 18/6
x = 3
4x - 3y = 12
4(3) - 3y = 12
12 - 3y = 12
-3y = 12 - 12
-3y = 0
y = 0
solution : (3,0)
Ответ:
Lol thanks for the points! :)
Step-by-step explanation: