solve the equation using mental math 7+r=15

Answers

Answered by Bosnian
Just subtract 7 from both sides of the equation.

r = 8
Answered by Bosnian
Or, since you know:.

7 + 8 = 15

r must be 8
thank you
Answered by bosnian
can someone help me with this question 5x g =230
what grade are you in Bosnian I am in 6th grade
please someone answer my question now you have 40 seconds
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