Answer:
-18x+89
Step-by-step explanation:
Here's why simple to simplify this expression we heave to first get rid of the parentheses so we distribute the 9. So we get:7-18x+81+1.
Now we can simplify easily:-18x+89
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Answer:
c
Step-by-step explanation:
Answer:
4.5
Step-by-step explanation:
The model represents:
-2x+8=2x-10
Solve.
-2x+8=2x-10
+2x +10
8+10=2x+2x
18=4x
18/4=x
4.5=x