brianna5626
18.12.2019 •
Mathematics
Consider this system on linear equations y-x=-31 -4x+3y=-51
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Ответ:
x=-42 and y=-73
Step-by-step explanation:
Given the system of equations:
Multiplying [1] by 4 we have
Subtracting [4] from [3]
⇒ y=-73
Putting it in [1]
Adding 73 both sides
-x=42
Multiplying both sides by -1
x=-42
Ответ:
c≈2.92
1.5^2+2.5^2=2.92