Answer:
The first one, 4 - 7 = -3
Step-by-step explanation:
When you add a negative to a postive, you are essentially subtracting the negative from the positive
Just isolate the variable x.
x*5+3=2
5x=-1
x=-1/5
Answer:
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CD = AD - (AB + BC)
CD = 51 - (19+14)
CD = 51 - 33
CD = 18
answer
CD = 18 mm
