The distributive property: a(b - c) = ab - ac
27 - 18r = 9·3 - 9·2r = 9(3 - 2r)
Answer:
6. 4
7. 40
8. 10
9. 4
10. 21
Step-by-step explanation:
Answer:
x=7 x=5 x=3
Step-by-step explanation:
First set the equations equal to zero
x-7 = 0
then add the 7 to both sides
and do this for all three
2/3 would be converted to 4/6 by multiplying the numerator and denominator by 2.
then you can add 4/6 + 1/6 to get 5/6