sneakersolequeen
22.04.2020 •
Mathematics
Explain why 3x is algebraic expression?
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Ответ:
Step-by-step explanation:
3x contains a variable x, hence 3x is algebraic expression.
Ответ:
-2x+8=x-1
add 2x to both sides
8=3x-1
add 1
9=3x
divide 3
3=x
sub
y=x-1
y=3-1
y=2
(x,y)
(3,2)