answer:
1. no
2. no
3. yes
4. no
5. no
solution & explanation:
1. 2(-1)+6=18
-2+6=4
4=18 false
2. 6(3)-4=24
18-4=14
14=24 false
3. -2(-2)+1=5
4+1=5
5=5 true
4. -8+5=2(-9)-4
-8+5=-4
2 x -9= -18
-18+-4= -22
-4=-22 false
5. -4(-2+1)=6
-2+1=-1
-4 x -1= 4
4=6 false
always remember that when dividing or multiplying integers, same signs are positive and different signs are negative. And bracket () also means multiplying when substituting most of the time. Hope this helps!
