3 years ago

11 + ? × 7 - ? = -21

1 answer:

6 0

Rewrite as
11+(7x)-x=-21
11+6x=-21
6x=-32
X= -32/6 = -16/3

Check:
11+(-16/3*7)+16/3=
11-112/3+16/3=
11-96/3=
11-32=
-21 it works

So...?= -16/3

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