alguém me ajuda pfvr ???
-4 = x + 8
-1 = x -3
10 = x - 5
-100 = x + 200
-8 = x + 10
-3 = x + 21
-21 = x + 7
-137 = x - 37
5 - 2 = x + 33
-340 = x +120
-81= x + 9
+7 = -x + 28
-10=-x+40
-144 = x + 9
Respostas
-4 = x + 8
-x=8+4
x=-8-4
x=-13
-1 = x -3
-x=1-3
x=3-1
10 = x - 5
-x=-5-10
x=10+5
x=15
-100 = x + 200
-x=200+100
x=-200-100
x=-300
-8 = x + 10
-x=10+8
x=-10-8
x=-18
-3 = x + 21
-x=21+3
x=-21-3
x=-24
-21 = x + 7
-x=7-21
x=21-7
x=14
-137 = x - 37
-x=137-37
x=37-137
x=-100
5 - 2 = x + 33
3=x +33
-x=33-3
x=3-33
x=-30
-340 = x +120
-x=120+340
x=-120-340
x=-460
-81= x + 9
-x=9+81
x=-9-81
x=-90
+7 = -x + 28
x=28-7
x=21
-10=-x+40
-x=10+40
x=-10-40
x=-50
-144 = x + 9
-x=9+144
x=-9-144
x=-153
Resposta: -4 = x + 8
-x=8+4
x=-8-4
x=-13
-1 = x -3
-x=1-3
x=3-1
10 = x - 5
-x=-5-10
x=10+5
x=15
-100 = x + 200
-x=200+100
x=-200-100
x=-300
-8 = x + 10
-x=10+8
x=-10-8
x=-18
-3 = x + 21
-x=21+3
x=-21-3
x=-24
-21 = x + 7
-x=7-21
x=21-7
x=14
-137 = x - 37
-x=137-37
x=37-137
x=-100
5 - 2 = x + 33
3=x +33
-x=33-3
x=3-33
x=-30
-340 = x +120
-x=120+340
x=-120-340
x=-460
-81= x + 9
-x=9+81
x=-9-81
x=-90
+7 = -x + 28
x=28-7
x=21
-10=-x+40
-x=10+40
x=-10-40
x=-50
-144 = x + 9
-x=9+144
x=-9-144
x=-153
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