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Mathematics
Class 7
Algebra
Addition and subtraction of algebraic expressions
7.
Make the algebraic expression by sum of given expression
Exercise condition:
4
♦
What should be added to the expression
$x+3y+z$
to get
$5x+20y-5z$
?
$-4x-17y-6z$
$6x-17y-6z$
$-4x-6y-6z$
$4x+17y-6z$
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