Answer:
2 +i
Step-by-step explanation:
-3+6i-(-5-3i)-8i
Distribute the minus sign
-3 +6i +5 +3i -8i
Combine like terms
-3+5 +6i +3i -8i
2 +i
Answer:
They spent $15.
Step-by-step explanation:
It's given that Jane bought x cookies, so 3x.
John spent $1 on each of the x cookies he got, and also an extra $10, so x+10.
3x=x+10
2x=10
x=5
So they got 5 cookies each.
5 cookies x $3= $15 (check with $5(1)+$10= $5+$10= $15 )
The mathematical expression for x is is fewer than 9 is x< 9
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