drandbone92
04.01.2021 •
Mathematics
Solve the system of equations Algebraically.
x+y=-3
y= x + 3
Find the value of.x, then y. Write your answer as an ordered pair.
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Ответ:
Put value of y in equation x+y=(-3)
x+x+3=(-3)
2x=(-6)
x=(-3)
Put x=(-3) in x+y=(-3)
(-3)+y=(-3)
y=0
So, x=(-3)
y=0
Ответ:
t= -1/3
Step-by-step explanation:
Multiply both sides of the equation by 15
-12t+6=10
Move constant to the right-hand side and change its sign
-12t=10-6
Subtract the numbers
-12t=4
Divide both sides of the equation by -12
t=-1/3
Alternative form:
t=-0.3333333333333333