Respuesta :
Step-by-step explanation:
First, multiply -7 by 0.
-7×0=0
Now, do the adding and subtracting.
1+0=1
1+9=10
10+5=15
15+5=20
20+3=23
23+9=32
32+3=35
35+112=147
147-123=24
24+7=31
31+0=31
The answer is: 31
Do it step by step for example 1+0 then the rest then you should get the answer then check your work twice to make sure it is right which the answer would be:31
