Mathematics: Name the property illustrated by the statement. 31.) if x + 9=2, then x+9-9+2-9

Name the property illustrated by the statement.

Ответ:

cgratz5106

31.12.2021

Mathematics

It is called

Subtraction Property because you subtract 9 from each side

x + 9 - 9 = 2 - 9

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Ответ:

cece4874

16.10.2020

Mathematics

We can solve these equations by using substitution method where you substitute one equation to the other and solve for the value of the other variable. We do as follows:

y = 2x^2
y = –3x −1

2x^2 = –3x −1
2x^2 +3x +1 = 0

x1= -0.5
x2 = -1
y1 = 0.5
y2 = 2

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Name the property illustrated by the statement.
31.) if x + 9=2, then x+9-9+2-9

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