zazulionking zazulionking

28-03-2018
Mathematics

contestada

I need help with 7 and 8

I need help with 7 and 8 class=

Respuesta :

mkryukova19 mkryukova19

28-03-2018

7. q+18 =22
q+18-18 =22-18 , q=4
at the problem q+18-18=22+18 mistake (should be subtracted from both sides)

8. r+10-10=22-10 r=12
r-15+15=5+15 r=20
r-18+18=14 +18 r=32
r+5-5=15-5 r=10

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