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3 years ago

Y=x y=-x+2 solve using substitution

Mathematics

2 answers:

zvonat [6]3 years ago

7 0

If y=x then
x=-x+2
2x=2

x=1
y=1

nika2105 [10]3 years ago

6 0

Since they equal each other once you find one, it’s the same as the other.

X=1
Y=1

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$\dfrac{6}{7}+\dfrac{3}{5}\\\\\text{Find the}\ LCD-\text{Least Common Denominator}\\\\\text{List multiples of 7}:\ 0,\ 7,\ 14,\ 21,\ 28,\ \boxed{35},\ 42,\ ...\\\text{List multiples of 5:}\ 0,\ 5,\ 10,\ 15,\ 20,\ 25,\ 30,\ \boxed{35},\ 40,\ ...\\\\LCD(7,\ 5)=\boxed{35}\\\\35=7\cdot5$

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