desiree3114
11.01.2021 •
Mathematics
What type of solution does this system of equation have? If it is one solution, identify the solution. x – 2y = -4, 2x – 4y = -8. Show your work.
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Ответ:
Step-by-step explanation:
Let
x ----> the number of weeks
s(x) ----> the amount of money in a piggy bank at home
a(x) ---> home laundry allowance
T(x) ----> total money
we know that
The function T(x) is equal to sum the function s(x) plus the function a(x)
we have
so
substitute
Combine like terms