answer: -11r
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Answer:
-11r
Step-by-step explanation:
-r-10r ----> -r+-10r
add like terms
The answer is on the picture!!
1. 13+10i
2. 28-(-4i)
3. -14-1i
4. 4 -i
5. 15+ 10i
6.8 - 5i^2
2.55
