tolong bantu jawab guys pakek jalannya jga .. Hitunglah 1. 10+(-12)+7=.. 2. -2+1-(-3)=.. 3. -4-(-3)+-3=..

1. 10 + (-12) + 7
<=> 10 - 12 + 7
<=> -2 + 7
<=> 5

2. -2 + 1 - (-3)
<=> -2 + 1 + 3
<=> -1 + 3
<=> 2

3. -4 - (-3) + (-3)
<=> -4 + 3 - 3
<=> -1 - 3
<=> -1 + (-3)
<=> -4

semoga benar & bermanfaat~ ^^)/

1) -2+7=5
2)-1-(-3)=-1+3=2
3)-4+3=-1+(-3)=-4
maaf klo salah