3 years ago

PLEASE HELP :(

Mathematics

1 answer:

kap26 [50]3 years ago

6 0

A. 9. -7 + x = 9
A = 13.
b. -7 + 13 = -7 - 7 + 6.

a. 10. -10 + x = -2
A = 8
b. -10 + 8 = -2

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